Equity - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax
Beginning balance	$ 8,047	$ 13,303	$ 10,397	$ 17,287
Other comprehensive loss	(59)	(20)	(208)	(53)
Ending balance	6,821	12,898	6,821	12,898
Foreign currency translation adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax
Beginning balance			(1,106)	(1,513)
Other comprehensive income (loss) before reclassifications			(553)	178
Net losses (gains) reclassified from accumulated other comprehensive loss			0	0
Other comprehensive loss			(553)	178
Ending balance	(1,659)	(1,335)	(1,659)	(1,335)
Net investment hedging activities
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax
Beginning balance			65	464
Other comprehensive income (loss) before reclassifications			336	(168)
Net losses (gains) reclassified from accumulated other comprehensive loss			(45)	(45)
Other comprehensive loss			291	(213)
Ending balance	356	251	356	251
Pension and post-employment benefits
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax
Beginning balance			(1,488)	(1,458)
Other comprehensive income (loss) before reclassifications			5	39
Net losses (gains) reclassified from accumulated other comprehensive loss	6	(1)	13	(3)
Other comprehensive loss			18	36
Ending balance	(1,470)	(1,422)	(1,470)	(1,422)
Cash flow hedging activities
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax
Beginning balance			224	308
Other comprehensive income (loss) before reclassifications			62	8
Net losses (gains) reclassified from accumulated other comprehensive loss			(26)	(62)
Other comprehensive loss			36	(54)
Ending balance	260	254	260	254
Accumulated other comprehensive income (loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax
Beginning balance			(2,305)	(2,199)
Other comprehensive income (loss) before reclassifications			(150)	57
Net losses (gains) reclassified from accumulated other comprehensive loss			(58)	(110)
Other comprehensive loss			(208)	(53)
Ending balance	$ (2,513)	$ (2,252)	$ (2,513)	$ (2,252)