Other Long-Term Liabilities - Particulars of Other Long-Term Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Long-term portion of fair value of hedges	$ 8	$ 40
Long-term portion of income taxes payable	234	205
Asset retirement obligation	34	33
Deferred revenue	74	106
Long-term lease inducements		16
Other	21
Total	$ 371	$ 400

Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due beyond one year or the operating cycle, whichever is longer. Alternate captions include income taxes payable, noncurrent.

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