Accumulated Other Comprehensive (Loss) Income - Changes (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
AOCI roll forward
Beginning balance	$ 6,928	$ 7,192	$ 6,864	$ 7,126
Other comprehensive income (loss), net of tax	(26)	(75)	11	(109)
Ending balance	6,966	7,012	6,966	7,012
Accumulated Other Comprehensive (Loss) Income [Member]
AOCI roll forward
Beginning balance	(32)	(17)	(69)	17
Other comprehensive income (loss) before reclassifications, net of tax expense (benefit)			14
Amounts reclassified from accumulated other comprehensive (income) loss, net of tax (expense) benefit			(3)
Other comprehensive income (loss), net of tax	(26)	(75)	11	(109)
Ending balance	(58)	$ (92)	(58)	$ (92)
Derivative Instruments [Member]
AOCI roll forward
Beginning balance			3
Other comprehensive income (loss) before reclassifications, net of tax expense (benefit)			16
Amounts reclassified from accumulated other comprehensive (income) loss, net of tax (expense) benefit			(2)
Other comprehensive income (loss), net of tax			14
Ending balance	17		17
Available-for-Sale Debt Securities [Member]
AOCI roll forward
Beginning balance			19
Other comprehensive income (loss) before reclassifications, net of tax expense (benefit)			1
Other comprehensive income (loss), net of tax			1
Ending balance	20		20
Foreign Currency Translation Adjustments [Member]
AOCI roll forward
Beginning balance			(94)
Other comprehensive income (loss) before reclassifications, net of tax expense (benefit)			(3)
Other comprehensive income (loss), net of tax			(3)
Ending balance	(97)		(97)
Post - Retirement Benefit Obligation [Member]
AOCI roll forward
Beginning balance			3
Amounts reclassified from accumulated other comprehensive (income) loss, net of tax (expense) benefit			(1)
Other comprehensive income (loss), net of tax			(1)
Ending balance	$ 2		$ 2