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Goodwill and Intangible Assets (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Oct. 01, 2020
Dec. 31, 2021
Dec. 31, 2019
Sep. 30, 2019
Dec. 31, 2019
Dec. 31, 2020
Dec. 31, 2018
Changes in the carrying amount of goodwill              
Goodwill.   $ 1,840 $ 1,934   $ 1,934 $ 1,951 $ 2,513
Goodwill impairment charge   0 0   595    
Americas              
Changes in the carrying amount of goodwill              
Goodwill.   974 $ 1,075   1,075 1,018 $ 1,634
Goodwill impairment charge       $ 595 $ 595    
Accumulated impairment losses   $ 595       $ 595  
North America              
Changes in the carrying amount of goodwill              
Goodwill. $ 446            
Approximate difference between the BEV and carrying value of reporting unit (as a percent) (28.00%)