Accumulated Other Comprehensive Income (Loss) - Schedule of Accumulated Other Comprehensive Income (Loss), Net of Tax (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 7,740	$ 6,770	$ 9,151
Other comprehensive income (loss) before reclassifications	(15)	39
Amounts reclassified out of accumulated other comprehensive income (loss)	17	35
Income tax effects	12	(46)
Total other comprehensive income (loss)	14	28	(69)
Ending balance	8,960	7,740	6,770
Currency translation differences
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	135	207
Other comprehensive income (loss) before reclassifications	42	(72)
Amounts reclassified out of accumulated other comprehensive income (loss)	0	0
Income tax effects	0	0
Total other comprehensive income (loss)	42	(72)
Ending balance	177	135	207
Change in fair value cash flow hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1)	0
Other comprehensive income (loss) before reclassifications	(14)	(36)
Amounts reclassified out of accumulated other comprehensive income (loss)	17	35
Income tax effects	(1)	0
Total other comprehensive income (loss)	2	(1)
Ending balance	1	(1)	0
Net actuarial gain/(losses)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(58)	(159)
Other comprehensive income (loss) before reclassifications	(43)	147
Amounts reclassified out of accumulated other comprehensive income (loss)	0	0
Income tax effects	13	(46)
Total other comprehensive income (loss)	(30)	101
Ending balance	(88)	(58)	(159)
Accumulated Other Comprehensive Income (loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	76	48	117
Total other comprehensive income (loss)	14	28	(69)
Ending balance	$ 90	$ 76	$ 48