Liabilities, Commitments and Contingencies - Schedule of Accrued Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Accrued compensation and employee benefit costs	$ 6,721	$ 6,351
Other customer concessions and considerations	1,300	1,102
Environmental	844	752	$ 605
Product warranties	2,448	2,275	$ 1,900
Forward loss recognition	4,699	4,060
Accrued interest payable	652	599
Current portion of lease liabilities	296	276
Current portion of retiree healthcare and pension liabilities	473	494
Other	3,571	3,808
Accrued liabilities	$ 22,331	$ 21,581