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Debt - Senior Secured Credit Facilities - Narrative (Details)		12 Months Ended			51 Months Ended
	Apr. 03, 2018 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Apr. 03, 2023	Apr. 03, 2018 EUR (€)
Line of Credit Facility [Line Items]
Repayment of outstanding borrowings		$ 150,000,000	$ 0	$ 0
Loss on extinguishment of debt		0	(38,000,000)	$ (1,000,000)
Senior Secured Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Debt instrument term	5 years
Line of credit facility, maximum borrowing capacity	$ 800,000,000
Line of credit facility, maturity date	Apr. 03, 2023
Maximum net leverage ratio	0.25%
Repayment of outstanding borrowings		$ 150,000,000
Commitment fee percentage		0.20%
Loss on extinguishment of debt			3,000,000
Senior Secured Revolving Credit Facility [Member] | Domestic Subsidiary [Member]
Line of Credit Facility [Line Items]
Collateral as percentage of common stock	100.00%
Senior Secured Revolving Credit Facility [Member] | Foreign Subsidiary [Member]
Line of Credit Facility [Line Items]
Collateral as percentage of common stock	65.00%
Senior Secured Revolving Credit Facility [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Variable rate	0.25%
Senior Secured Revolving Credit Facility [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Variable rate	0.10%
Senior Secured Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Variable rate	1.25%
Senior Secured Revolving Credit Facility [Member] | Base Rate [Member]
Line of Credit Facility [Line Items]
Variable rate	1.00%
Senior Secured Revolving Credit Facility [Member] | Euro Interbank Offered Rate [Member]
Line of Credit Facility [Line Items]
Variable rate	2.00%
Dollar Term Loan [Member]
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 900,000,000
Line of credit facility, maturity date	Apr. 03, 2025
Effective interest rates on senior secured term loan		3.60%
Dollar Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Variable rate	1.75%
Dollar Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Variable rate	0.00%
Dollar Term Loan [Member] | Base Rate [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Variable rate	0.75%
Dollar Term Loan [Member] | Base Rate [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Variable rate	1.00%
Euro Term Loan [Member]
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity | €						€ 350,000,000
Line of credit facility, maturity date	Apr. 03, 2025
Effective interest rates on senior secured term loan		2.50%
Euro Term Loan [Member] | Euro Interbank Offered Rate [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Variable rate	2.00%
Euro Term Loan [Member] | Euro Interbank Offered Rate [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Variable rate	0.50%
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Long-term debt		$ 0	0
Letters of credit outstanding		$ 103,000,000	$ 104,000,000
Revolving Credit Facility [Member] | Scenario Forecast [Member]
Line of Credit Facility [Line Items]
Maximum net leverage ratio					2.00%
Senior Secured Term Loan Facility [Member]
Line of Credit Facility [Line Items]
Debt instrument term	7 years

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Line of credit facility, covenant terms, maximum net leverage ratio.

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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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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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 fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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

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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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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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