Fair Value Measurements - Financial Assets and Liabilities Carried at Fair Value (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Assets:
Total Assets at fair value	$ 27	$ 38
Liabilities:
Total Liabilities at fair value	37	17
Level 1
Assets:
Total Assets at fair value	24	18
Liabilities:
Total Liabilities at fair value	24	17
Level 2
Assets:
Total Assets at fair value	3	20
Liabilities:
Total Liabilities at fair value	13	0
Level 3
Assets:
Total Assets at fair value	0	0
Liabilities:
Total Liabilities at fair value	0	0
Foreign exchange contracts
Assets:
Derivative asset	3	16
Foreign exchange contracts \| Level 1
Assets:
Derivative asset	0	1
Foreign exchange contracts \| Level 2
Assets:
Derivative asset	3	15
Foreign exchange contracts \| Level 3
Assets:
Derivative asset	0	0
Forward interest rate swaps
Assets:
Derivative asset		5
Liabilities:
Derivative liability	13
Forward interest rate swaps \| Level 1
Assets:
Derivative asset		0
Liabilities:
Derivative liability	0
Forward interest rate swaps \| Level 2
Assets:
Derivative asset		5
Liabilities:
Derivative liability	13
Forward interest rate swaps \| Level 3
Assets:
Derivative asset		0
Liabilities:
Derivative liability	0
Money market investments related to the deferred compensation plan
Assets:
Investment	24	17
Money market investments related to the deferred compensation plan \| Level 1
Assets:
Investment	24	17
Money market investments related to the deferred compensation plan \| Level 2
Assets:
Investment	0	0
Money market investments related to the deferred compensation plan \| Level 3
Assets:
Investment	0	0
Liabilities related to the deferred compensation plan
Liabilities:
Liabilities related to the deferred compensation plan	24	17
Liabilities related to the deferred compensation plan \| Level 1
Liabilities:
Liabilities related to the deferred compensation plan	24	17
Liabilities related to the deferred compensation plan \| Level 2
Liabilities:
Liabilities related to the deferred compensation plan	0	0
Liabilities related to the deferred compensation plan \| Level 3
Liabilities:
Liabilities related to the deferred compensation plan	$ 0	$ 0

Fair value of investment other than investment in equity security, investment in debt security and equity method investment. Includes, but is not limited to, investment in certain entities that calculate net asset value per share. Example includes, but is not limited to, investment in hedge fund, venture capital fund, private equity fund, and real estate partnership or fund.

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Fair value of financial and nonfinancial obligations.

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Fair value of obligations not classified as financial liabilities. Includes, but is not limited to, accounts payable and accrued liabilities, commitments, obligations, and other liabilities.

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