Fair Value - Financial Instruments Carried at Fair Value on Recurring Basis (Detail) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Assets:
Total	$ 134	$ 117
Liabilities:
Total	383	319
Derivatives
Assets:
Derivatives	27	46
Liabilities:
Derivatives	383	319
Money market funds/mutual funds
Assets:
Money market funds/mutual funds	107
Mutual funds
Assets:
Money market funds/mutual funds		71
Level 1
Assets:
Total	107	71
Liabilities:
Total	0	0
Level 1 | Derivatives
Assets:
Derivatives	0	0
Liabilities:
Derivatives	0	0
Level 1 | Money market funds/mutual funds
Assets:
Money market funds/mutual funds	107
Level 1 | Mutual funds
Assets:
Money market funds/mutual funds		71
Level 2
Assets:
Total	27	46
Liabilities:
Total	383	319
Level 2 | Derivatives
Assets:
Derivatives	27	46
Liabilities:
Derivatives	383	319
Level 2 | Money market funds/mutual funds
Assets:
Money market funds/mutual funds	$ 0
Level 2 | Mutual funds
Assets:
Money market funds/mutual funds		$ 0