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Equity In Net Assets Of Nonconsolidated Affiliates - Transactions with NCAs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Related Party Transactions [Line Items]
Net sales and revenue	$ 187,442	$ 171,842	$ 156,735
Accounts and notes receivable, net	12,827	12,378
Accounts payable (principally trade)	25,680	28,114
Certain Equity Method Investee's
Related Party Transactions [Line Items]
Net sales and revenue	90	209	218
Automotive purchases, net	4,875	2,766	2,637
Dividends received	418	1,018	1,030
Operating cash flows	(4,422)	(941)	$ (1,133)
Accounts and notes receivable, net	1,056	589
Accounts payable (principally trade)	892	806
Undistributed earnings	$ 6	$ 1,719

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