Cash flow statement
| 
    	                		                	                                        	                                                                                                 in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                                            
    	                		                	                                        	                                                                                                 | 
    	                		                	                                        	                                                                                                 2021 
    	                		                	                                        	                                                                                                            
    	                		                	                                        	                                                                                                 | 
    	                		                	                                        	                                                                                                 2020 
    	                		                	                                        	                                                                                                            
    	                		                	                                        	                                                                                                 | 
    	                		                	                                        	                                                                                    
|---|---|---|
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            1. Operating activities 
    	                		                	                                        	                                                                                     | ||
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Group net profit 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            441.2 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            807.6 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Income tax 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            72.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            195.0 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Investment and financial result 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            -354.5 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            100.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Amortization and depreciation 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            2,644.7 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            1,560.6 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            EBITDA 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            2,803.5 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            2,663.3 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Changes in provisions 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            -103.9 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -553.3 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Result from disposals of assets 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            5.8 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -2.4 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Other non-cash-relevant expenses/income 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            -402.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -23.7 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Change in assets and liabilities from operating activities 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            5,495.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -718.0 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Inventories 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            (867.6) 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            (157.2) 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Net balance of trade receivables and payables 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            (1,246.7) 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            (-970.2) 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Net balance of other assets and liabilities 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            (3,380.8) 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            (95.0) 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Income tax paid 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            -200.6 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -207.8 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Cash flow from operating activities 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            7,597.8 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            1,158.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            2. Investing activities 
    	                		                	                                        	                                                                                     | ||
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Capital expenditure on intangible assets and property, plant and equipment 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            -2,361.9 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -2,178.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Disposals of intangible assets and property, plant and equipment 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            73.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            245.5 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Cash received from subsidies for construction cost and investments 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            94.8 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            116.5 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Acquisition of subsidiaries, entities accounted for using the equity method and interests in joint operations0Includes payments related to bids for offshore wind rights. These will only lead to a change in the consolidated companies at a later date. 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            -287.0 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -126.5 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Sale of subsidiaries, entities accounted for using the equity method and interests in joint operations 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            0.9 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -39.6 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Cash paid for investments in other financial assets 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            -1,404.8 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -1,409.9 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Cash received from the sale of other financial assets 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            620.5 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            1,167.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Cash received/paid for investments in connection with short-term finance planning 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            47.3 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -18.0 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Interest received 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            148.7 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            95.4 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Dividends received 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            209.3 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            169.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Cash flow from investing activities 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            2,859.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -1,978.5 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            3. Financing activities 
    	                		                	                                        	                                                                                     | ||
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Interest paid 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            -314.5 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -236.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Dividends paid 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            -547.2 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -389.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Cash received for changes in ownership interest without loss of control 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            229.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            207.8 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Cash paid for changes in ownership interest without loss of control 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            -5.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -0.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Increase in financial liabilities 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            3,523.5 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            3,697.7 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Repayment of financial liabilities 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            2,025.7 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -2,510.6 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Repayment of lease liabilities 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            -185.4 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -160.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Cash received for capital increases in non-controlling interests 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            11.5 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            144.7 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Payments for capital reductions in non-controlling interests 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            -86.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -72.3 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Cash flow from financing activities 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            600.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            681.9 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Net change in cash and cash equivalents 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            5,338.8 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -138.5 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Change in cash and cash equivalents due to changes in the consolidated companies 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            29.0 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            38.7 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Net foreign exchange difference 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            32.4 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -11.4 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Change in cash and cash equivalents due to risk provisions 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            0.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            0.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Change in cash and cash equivalents 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            5,400.4 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            -111.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Cash and cash equivalents at the beginning of the period 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            1,252.7 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            1,363.8 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                
| 
    	                		                	                                        	                                                                                             in € million0Further information is available in the notes under (32) “Notes to the cash flow statement.” 
    	                		                	                                        	                                                                                            Cash and cash equivalents at the end of the period 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2021 
    	                		                	                                        	                                                                                            6,653.1 
    	                		                	                                        	                                                                                     | 
    	                		                	                                        	                                                                                             2020 
    	                		                	                                        	                                                                                            1,252.7 
    	                		                	                                        	                                                                                     |