v3.22.1
Divestiture - Gain on sale (Details) - USD ($)
$ in Millions
3 Months Ended
Jan. 19, 2021
Mar. 31, 2022
Mar. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Gain (Loss) on business divestitures, net   $ 0 $ 1,684
Apparate | Not Discontinued Operations      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Derecognition of ATG Business' non-controlling interests $ 1,057    
Liability recognized for future obligations (315)    
Net consideration received for sale of the ATG Business 2,019    
Carrying value of net assets transferred (375)    
Gain (Loss) on business divestitures, net 1,644   $ 1,600
Aurora | Not Discontinued Operations      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Fair value of common shares received 1,277    
Aurora | Apparate | Not Discontinued Operations      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Fair value of common shares received $ 1,300