Financial instruments and fair value measurement.

No definition available.

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- Definition

Number of additional forward starting interest rate swaps.

+ References

No definition available.

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- Definition

Other cash accounts fair value disclosure.

+ References

No definition available.

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- Definition

Other cash accounts fair value disclosure variable interest rates.

+ References

No definition available.

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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

No definition available.

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- Definition

Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=117331979&loc=d3e41228-113958

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

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- Definition

Date the derivative contract matures, in CCYY-MM-DD format.

+ References

No definition available.

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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959

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- Definition

The increase (decrease) during the reporting period of all assets and liabilities used in operating activities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

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- Definition

Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets.

+ References

No definition available.

+ Details

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Financial Instruments and Fair Value Measurement - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2015 USD ($) Derivative
Financial Instruments And Fair Value Measurement [Line Items]
Cash and cash equivalents	$ 577,000,000
Other cash accounts	$ 581,000,000
Minimum
Financial Instruments And Fair Value Measurement [Line Items]
Other cash accounts, variable interest rates	0.20%
Maximum
Financial Instruments And Fair Value Measurement [Line Items]
Other cash accounts, variable interest rates	0.25%
One Point Three One Percent Forward Starting Interest Rate Swaps
Financial Instruments And Fair Value Measurement [Line Items]
Number of additional forward starting interest rate swaps \| Derivative				9
Maturity date of interest rate cash flow hedges				Apr. 15, 2019
Fixed rate payable on interest rate swap				1.31%
Interest Rate Swap
Financial Instruments And Fair Value Measurement [Line Items]
Interest rate swaps	$ 0
Foreign Currency Forward Exchange Contracts
Financial Instruments And Fair Value Measurement [Line Items]
Net cash (outflows) inflows	(22,000,000)	$ (20,000,000)	$ 66,000,000
Fair Value Hedge
Financial Instruments And Fair Value Measurement [Line Items]
Fair value of hedges outstanding	$ 0	$ 0	$ 0
Cash Flow Hedging \| One Point Three One Percent Forward Starting Interest Rate Swaps
Financial Instruments And Fair Value Measurement [Line Items]
Notional amount of interest rate cash flow hedges				$ 1,000,000,000.0