Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of the period	$ 38,603
Other Comprehensive Income (Loss)	(67)	$ 212	$ 323
End of the period	47,664	38,603
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of the period	(7,839)	(8,051)
Other comprehensive income (loss) before reclassifications	(115)	344
(Income) loss amounts reclassified from accumulated other comprehensive income	48	(132)
Other Comprehensive Income (Loss)	(67)	212	323
End of the period	(7,906)	(7,839)	(8,051)
Cumulative Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of the period	(6,504)	(6,733)
Other comprehensive income (loss) before reclassifications	(1,117)	212
(Income) loss amounts reclassified from accumulated other comprehensive income	116	17
Other Comprehensive Income (Loss)	(1,001)	229
End of the period	(7,505)	(6,504)	(6,733)
Net Actuarial Gains (Losses) and Prior Service (Costs) and Credits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of the period	(1,376)	(1,493)
Other comprehensive income (loss) before reclassifications	757	127
(Income) loss amounts reclassified from accumulated other comprehensive income	8	(10)
Other Comprehensive Income (Loss)	765	117
End of the period	(611)	(1,376)	(1,493)
Cumulative Gains (Losses) on Derivative Instruments Designated as Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of the period	41	175
Other comprehensive income (loss) before reclassifications	245	5
(Income) loss amounts reclassified from accumulated other comprehensive income	(76)	(139)
Other Comprehensive Income (Loss)	169	(134)
End of the period	$ 210	$ 41	$ 175