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Equity In Net Assets Of Nonconsolidated Affiliates - Transactions with NCAs (Details) - Nonconsolidated Affiliates - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Related Party Transactions [Line Items]
Automotive sales and revenue	$ 227	$ 235	$ 199
Automotive purchases, net	1,551	165	1,065
Dividends received	783	1,198	1,852
Operating cash flows	(616)	1,473	$ 913
Accounts and notes receivable, net	1,004	954
Accounts payable	555	494
Undistributed earnings	$ 2,111	$ 1,594

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