Equity In Net Assets Of Nonconsolidated Affiliates - Transactions with NCAs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Related Party Transactions [Line Items]
Net sales and revenue	$ 171,842	$ 156,735	$ 127,004
Accounts and notes receivable, net	12,378	13,333
Accounts payable (principally trade)	28,114	27,486
Certain Equity Method Investee's
Related Party Transactions [Line Items]
Net sales and revenue	209	218	227
Automotive purchases, net	2,766	2,637	1,551
Dividends received	1,018	1,030	783
Operating cash flows	(941)	(1,133)	$ (616)
Accounts and notes receivable, net	589	1,089
Accounts payable (principally trade)	806	942
Undistributed earnings	$ 1,719	$ 1,918