Lender fees and debt financing costs capitalized.

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Line of credit facility extended maturity date.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount of foreign earnings repatriated from subsidiaries outside the country of domicile.

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Amount of the cost of borrowed funds accounted for as interest expense.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Description of the terms of a credit facility arrangement. Terms typically include interest rate, collateral required, guarantees required, repayment requirements, and restrictions on use of assets and activities of the entity.

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Date the credit facility terminates, in CCYY-MM-DD format.

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Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Debt - Two Thousand Fifteen Credit Facility - Additional Information (Details) - USD ($)	1 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	May 31, 2017
Debt Instrument [Line Items]
Total interest expense and commitments fees		$ 7,000,000	$ 12,000,000	$ 15,000,000
2015 Credit Facility
Debt Instrument [Line Items]
Total interest expense and commitments fees		2,000,000	3,000,000	6,000,000
2015 Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Borrowing capacity under Credit Facility	$ 1,000,000,000	$ 1,200,000,000			$ 1,200,000,000
Interest rate description		Borrowings under the 2015 Credit Facility generally bear interest, at the Company’s option, at a rate per annum equal to either (i) the Eurocurrency Borrowing rate, or the adjusted LIBO rate for the interest period in effect for such borrowing; plus an applicable margin ranging from 1.25% to 2.00% (“Eurocurrency Spread”), based on the Company’s leverage ratio; or (ii) the Alternate Base Rate (“ABR”) Borrowing, which is the greatest of (a) the Prime Rate in effect on such day, (b) the New York Fed Bank Rate in effect on such day plus 1/2 of 1.00% per annum and (c) the Adjusted LIBO Rate (or LIBO rate multiplied by the Statutory Reserve Rate) for an interest period of one month plus 1.00%; in addition to an applicable margin ranging from 0.25% to 1.00% (“ABR Spread”), based on the Company’s leverage ratio
Credit facility, maturity date		Jun. 26, 2020
Credit facility, extended maturity date		May 12, 2022
Credit Facility, description		the 2015 Credit Facility was amended to, among other things, (i) increase the aggregate amount of revolving loan commitments available from $1.0 billion to $1.2 billion; and (ii) extend the maturity date of the 2015 Credit Facility from June 26, 2020 to May 12, 2022 (the “First Amendment”).
Credit facility, expiration period		5 years
Amount borrowed	290,000,000			435,000,000
Repayments of Debt			230,000,000	$ 296,000,000
Cash repatriation of foreign earnings			325,000,000
Outstanding borrowings		$ 0	$ 0
Line Of Credit Facility Unused Capacity Commitment Fee Percentage		0.15%	0.15%
Deferred financing costs		$ 2,000,000
Lender fees and debt financing costs capitalized	$ 5,000,000
2015 Credit Facility \| Revolving Credit Facility \| Adjusted London Interbank Offered Rate
Debt Instrument [Line Items]
Borrowings, interest rate description		Adjusted LIBO Rate (or LIBO rate multiplied by the Statutory Reserve Rate) for an interest period of one month plus 1.00%;
Borrowings, interest rate			1.00%
2015 Credit Facility \| Revolving Credit Facility \| New York Fed Bank Rate
Debt Instrument [Line Items]
Basis spread on variable rate		0.50%
Borrowings, interest rate description		effect on such day plus 1/2 of 1.00% per annum
2015 Credit Facility \| Letter of Credit
Debt Instrument [Line Items]
Borrowing capacity under Credit Facility		$ 15,000,000
Letters of credit outstanding amount		3,000,000	$ 3,000,000
2015 Credit Facility \| Borrowings On Same Day Notice
Debt Instrument [Line Items]
Borrowing capacity under Credit Facility		$ 40,000,000
2015 Credit Facility \| Minimum \| Revolving Credit Facility
Debt Instrument [Line Items]
Line Of Credit Facility Unused Capacity Commitment Fee Percentage		0.15%
2015 Credit Facility \| Minimum \| Revolving Credit Facility \| Eurocurrency Spread
Debt Instrument [Line Items]
Basis spread on variable rate		1.25%
2015 Credit Facility \| Minimum \| Revolving Credit Facility \| Adjusted London Interbank Offered Rate
Debt Instrument [Line Items]
Basis spread on variable rate		0.25%
2015 Credit Facility \| Minimum \| Revolving Credit Facility \| ABR Spread
Debt Instrument [Line Items]
Basis spread on variable rate		0.25%
2015 Credit Facility \| Maximum \| Revolving Credit Facility
Debt Instrument [Line Items]
Line Of Credit Facility Unused Capacity Commitment Fee Percentage		0.30%
2015 Credit Facility \| Maximum \| Revolving Credit Facility \| Eurocurrency Spread
Debt Instrument [Line Items]
Basis spread on variable rate		2.00%
2015 Credit Facility \| Maximum \| Revolving Credit Facility \| Adjusted London Interbank Offered Rate
Debt Instrument [Line Items]
Basis spread on variable rate		1.00%
2015 Credit Facility \| Maximum \| Revolving Credit Facility \| ABR Spread
Debt Instrument [Line Items]
Basis spread on variable rate		1.00%