Derivative Instruments And Hedging Activities - Gains (Losses) Recognized in AOCI and Reclassified from AOCI on Derivatives (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Cash flow hedging relationships, amount of gain/(loss) recognized in AOCI on derivative, net of tax	$ 0	$ 0	$ (51)
Total, amount of gain/loss) recognized in AOCI on derivative, net of tax	164	242	(325)
Net investment hedging relationships, amount of gain/(loss) reclassified from AOCI into income, net of tax	0	1	1
Cash flow hedging relationships, amount of gain/(loss) reclassified from AOCI into income, net of tax	(2)	(2)	(2)
Total, amount of gain/loss) reclassified from AOCI into income, net of tax	(2)	(1)	(2)
Gain/(Loss) Recognized in Income on Derivative (Amount Excluded from Effectiveness Testing)	56	35	50
Net Investment Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Net investment hedging relationships, amount of gain/(loss) recognized in AOCI on derivative, net of tax	164	242	(274)
Net investment hedging relationships, amount of gain/(loss) reclassified from AOCI into income, net of tax	0	1	0
Gain/(Loss) Recognized in Income on Derivative (Amount Excluded from Effectiveness Testing)	56	35	50
Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Cash flow hedging relationships, amount of gain/(loss) recognized in AOCI on derivative, net of tax	0	0	(51)
Cash flow hedging relationships, amount of gain/(loss) reclassified from AOCI into income, net of tax	(2)	(2)	(2)
Gain/(Loss) Recognized in Income on Derivative (Amount Excluded from Effectiveness Testing)	0	0	0
FX forwards | Net Investment Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Net investment hedging relationships, amount of gain/(loss) recognized in AOCI on derivative, net of tax	0	18	(14)
Net investment hedging relationships, amount of gain/(loss) reclassified from AOCI into income, net of tax	0	1	0
Gain/(Loss) Recognized in Income on Derivative (Amount Excluded from Effectiveness Testing)	0	0	0
Cross currency swaps | Net Investment Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Net investment hedging relationships, amount of gain/(loss) recognized in AOCI on derivative, net of tax	99	143	(165)
Net investment hedging relationships, amount of gain/(loss) reclassified from AOCI into income, net of tax	0	0	0
Gain/(Loss) Recognized in Income on Derivative (Amount Excluded from Effectiveness Testing)	56	35	50
Long-term debt | Net Investment Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Net investment hedging relationships, amount of gain/(loss) recognized in AOCI on derivative, net of tax	65	81	(95)
Net investment hedging relationships, amount of gain/(loss) reclassified from AOCI into income, net of tax	0	0	0
Gain/(Loss) Recognized in Income on Derivative (Amount Excluded from Effectiveness Testing)	0	0	0
Interest rate contract | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Cash flow hedging relationships, amount of gain/(loss) recognized in AOCI on derivative, net of tax	0	0	(51)
Cash flow hedging relationships, amount of gain/(loss) reclassified from AOCI into income, net of tax	(2)	(2)	(2)
Gain/(Loss) Recognized in Income on Derivative (Amount Excluded from Effectiveness Testing)	$ 0	$ 0	$ 0