Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	$ 7,746	$ 6,515
Balance at end of period	5,606	7,874
Foreign currency translation adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(1,034)	(1,558)
Increase / (Decrease)	(62)	631
Reclassifications	0	0
Balance at end of period	(1,096)	(927)
Translation adjustments on net investment hedge
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	126	295
Increase / (Decrease)	50	(162)
Reclassifications	0	0
Balance at end of period	176	133
Defined benefit pension and other postretirement plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(12)	(6)
Increase / (Decrease)	0	0
Reclassifications	0	0
Balance at end of period	(12)	(6)
Investment securities available-for-sale
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period		0
Increase / (Decrease)		1
Reclassifications		0
Balance at end of period		1
Accumulated other comprehensive income (loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(981)	(1,433)
Increase / (Decrease)	89	144
Reclassifications	(112)	370
Balance at end of period	(1,004)	(919)
Foreign exchange contracts \| Cash flow hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	46	(51)
Increase / (Decrease)	101	(326)
Reclassifications	(115)	367
Balance at end of period	32	(10)
Interest rate contracts \| Cash flow hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(107)	(113)
Increase / (Decrease)	0	0
Reclassifications	3	3
Balance at end of period	$ (104)	$ (110)