Accumulated Other Comprehensive Income (Loss) - Components of AOCI (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	$ 6,927	$ 6,808	$ 4,989
Other comprehensive income (loss), before reclassifications	(78)	(128)
Amounts reclassified from other comprehensive income	(24)	(170)	(9)
Other comprehensive income (loss), net of tax	(93)	218	237
Ending balance	8,180	6,927	6,808
Non-controlling interest	3	1	(6)
Revision of Prior Period, Adjustment
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance		(1,654)
Ending balance			(1,654)
Total
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	(2,278)	(2,445)	(2,676)
Other comprehensive income (loss), before reclassifications	(108)	110	330
Amounts reclassified from other comprehensive income	12	109	(99)
Other comprehensive income (loss), net of tax	(96)	219	231
Ending balance	(2,374)	(2,278)	(2,445)
Total | Previously Reported
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance		(2,445)
Ending balance			(2,445)
Total | Revision of Prior Period, Adjustment
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance		(52)
Ending balance			(52)
Total | Revision of Prior Period, Adjusted Balance
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance		(2,497)
Ending balance			(2,497)
Unrealized Gain (Loss) on Cash Flow Hedges
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	46		(6)
Other comprehensive income (loss), before reclassifications	(80)	(126)	(20)
Amounts reclassified from other comprehensive income	24	170	9
Other comprehensive income (loss), net of tax	(56)	44	(11)
Ending balance	(10)	46
Unrealized Gain (Loss) on Cash Flow Hedges | Previously Reported
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance		(17)
Ending balance			(17)
Unrealized Gain (Loss) on Cash Flow Hedges | Revision of Prior Period, Adjustment
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance		19
Ending balance			19
Unrealized Gain (Loss) on Cash Flow Hedges | Revision of Prior Period, Adjusted Balance
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance		2
Ending balance			2
Change in Retirement Plans’ Funded  Status
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	(285)		(653)
Other comprehensive income (loss), before reclassifications	(54)	102	202
Amounts reclassified from other comprehensive income	(12)	(61)	(108)
Other comprehensive income (loss), net of tax	(66)	41	94
Ending balance	(351)	(285)
Change in Retirement Plans’ Funded  Status | Previously Reported
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance		(559)
Ending balance			(559)
Change in Retirement Plans’ Funded  Status | Revision of Prior Period, Adjustment
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance		233
Ending balance			233
Change in Retirement Plans’ Funded  Status | Revision of Prior Period, Adjusted Balance
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance		(326)
Ending balance			(326)
Foreign  Currency Translation
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	(1,800)		(1,884)
Other comprehensive income (loss), before reclassifications	37	159	241
Amounts reclassified from other comprehensive income	0	0	0
Other comprehensive income (loss), net of tax	37	159	241
Ending balance	(1,763)	(1,800)
Foreign  Currency Translation | Previously Reported
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance		(1,643)
Ending balance			(1,643)
Foreign  Currency Translation | Revision of Prior Period, Adjustment
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance		(316)
Ending balance			(316)
Foreign  Currency Translation | Revision of Prior Period, Adjusted Balance
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance		(1,959)
Ending balance			(1,959)
Share of Other Comprehensive Income of Entities Using the Equity Method
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	(239)		(133)
Other comprehensive income (loss), before reclassifications	(11)	(25)	(93)
Amounts reclassified from other comprehensive income	0	0	0
Other comprehensive income (loss), net of tax	(11)	(25)	(93)
Ending balance	$ (250)	(239)
Share of Other Comprehensive Income of Entities Using the Equity Method | Previously Reported
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance		(226)
Ending balance			(226)
Share of Other Comprehensive Income of Entities Using the Equity Method | Revision of Prior Period, Adjustment
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance		12
Ending balance			12
Share of Other Comprehensive Income of Entities Using the Equity Method | Revision of Prior Period, Adjusted Balance
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance		$ (214)
Ending balance			$ (214)