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Debt - Senior Notes (Details) - USD ($)	1 Months Ended	3 Months Ended	9 Months Ended
	Aug. 31, 2017	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017	Dec. 31, 2017
Debt Instrument [Line Items]
Proceeds from offering			$ 0	$ 744,700,000
Loss on extinguishment of debt			0	21,200,000
Payment of related issuance costs			$ 0	11,700,000
Senior notes | 2027 Notes
Debt Instrument [Line Items]
Aggregate principal amount	$ 750,000,000.0
Stated coupon rate	3.80%		3.80%		3.80%
Redemption price, percent of par	99.294%
Weighted Average Interest Rate	3.885%		3.885%		3.885%
Proceeds from offering	$ 744,700,000
Payment of related issuance costs		$ 6,000,000		6,000,000
Senior notes | 2023 Notes
Debt Instrument [Line Items]
Aggregate principal amount	$ 500,000,000.0
Stated coupon rate	4.75%
Redemption price, percent of par	100.00%
Make-whole premium	$ 17,000,000
Loss on extinguishment of debt		$ 21,200,000		$ 21,200,000
Credit agreement | Prior credit agreement | Credit Agreement — Term Loan Facility
Debt Instrument [Line Items]
Aggregate principal amount	$ 500,000,000.0

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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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