Covestro Group Consolidated Statement of Changes in Equity
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            Capital stock of Covestro AG  | 
            
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            Capital reserves of Covestro AG  | 
            
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            Retained earnings incl. total income  | 
            
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            Accumulated other comprehensive income  | 
            
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            Equity attributable to Covestro AG shareholders  | 
            
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            Equity attributable to noncontrolling interest  | 
            
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            Equity  | 
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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            € million  | 
            
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            € million  | 
            
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            € million  | 
            
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            € million  | 
            
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            € million  | 
            
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            € million  | 
            
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            € million  | 
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Dec. 31, 2019  | 
            
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            183  | 
            
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            3,487  | 
            
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            1,122  | 
            
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            415  | 
            
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            5,207  | 
            
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            47  | 
            
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            5,254  | 
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Capital increase1  | 
            
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            10  | 
            
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            434  | 
            
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            444  | 
            
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            444  | 
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Issuance of treasury shares  | 
            
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            –  | 
            
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            5  | 
            
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            5  | 
            
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            5  | 
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Dividend payments  | 
            
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            (219)  | 
            
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            (219)  | 
            
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            (2)  | 
            
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            (221)  | 
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Other changes2  | 
            
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            (1)  | 
            
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            (1)  | 
            
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            –  | 
            
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            (1)  | 
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Income after income taxes  | 
            
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            459  | 
            
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            459  | 
            
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            (5)  | 
            
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            454  | 
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Other comprehensive income  | 
            
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            (82)  | 
            
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            (206)  | 
            
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            (288)  | 
            
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            (3)  | 
            
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            (291)  | 
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Total comprehensive income  | 
            
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            377  | 
            
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            (206)  | 
            
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            171  | 
            
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            (8)  | 
            
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            163  | 
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Dec. 31, 2020  | 
            
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            193  | 
            
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            3,925  | 
            
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            1,280  | 
            
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            209  | 
            
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            5,607  | 
            
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            37  | 
            
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            5,644  | 
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of which treasury shares  | 
            
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            –  | 
            
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            (2)  | 
            
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            (2)  | 
            
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            (2)  | 
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Dec. 31, 2020  | 
            
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            193  | 
            
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            3,925  | 
            
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            1,280  | 
            
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            209  | 
            
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            5,607  | 
            
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            37  | 
            
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            5,644  | 
        ||||||||
Issuance of treasury shares  | 
            
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            –  | 
            
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            2  | 
            
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            2  | 
            
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            2  | 
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Dividend payments  | 
            
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            (251)  | 
            
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            (251)  | 
            
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            (11)  | 
            
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            (262)  | 
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Other changes3  | 
            
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            –  | 
            
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            (1)  | 
            
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            (1)  | 
            
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            35  | 
            
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            34  | 
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Income after income taxes  | 
            
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            1,616  | 
            
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            1,616  | 
            
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            3  | 
            
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            1,619  | 
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Other comprehensive income  | 
            
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            358  | 
            
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            365  | 
            
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            723  | 
            
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            2  | 
            
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            725  | 
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Total comprehensive income  | 
            
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            1,974  | 
            
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            365  | 
            
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            2,339  | 
            
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            5  | 
            
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            2,344  | 
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Dec. 31, 2021  | 
            
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            193  | 
            
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            3,927  | 
            
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            3,002  | 
            
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            574  | 
            
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            7,696  | 
            
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            66  | 
            
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            7,762  | 
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of which treasury shares  | 
            
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            –  | 
            
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            –  | 
            
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            –  | 
            
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            –  | 
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