Long-term Debt (Details) - USD ($)		9 Months Ended
	Sep. 28, 2021	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Borrowings
Unamortized discount, debt issuance costs and other		$ (23,600,000)		$ (18,700,000)
Total long term-debt		2,926,400,000		2,081,300,000
Current portion of debt		2,400,000		1,100,000
Total long-term debt, net of current portion		2,924,000,000		2,080,200,000
Borrowings from revolving credit facility		650,000,000.0	$ 500,000,000.0
Repayments of the facility		650,000,000.0	500,000,000.0
Letters of credit outstanding		27,700,000		25,200,000
Revolving credit facility
Borrowings
Borrowings from revolving credit facility		650,000,000	500,000,000
Repayments of the facility		$ 650,000,000	$ 500,000,000
Weighted average interest rate, over time		1.125%	1.90%
Revolving credit facility		$ 0		0
Availability under revolving line of credit		1,000,000,000		1,000,000,000
2.20% notes due 2032
Borrowings
Long-term debt, carrying amount		$ 550,000,000.0		0
Interest rate (as a percent)	2.20%	2.20%
Notes issued in public offering	$ 550,000,000
Debt discount	4,800,000
Proceeds from public offering of notes	545,200,000
Debt issuance costs	$ 1,100,000
2.20% notes due 2032 | Significant Observable Inputs (Level 2)
Borrowings
Fair value of notes		$ 533,700,000		0
2.75% Notes due 2030
Borrowings
Long-term debt, carrying amount		$ 750,000,000.0		$ 750,000,000.0
Interest rate (as a percent)		2.75%		2.75%
2.75% Notes due 2030 | Significant Observable Inputs (Level 2)
Borrowings
Fair value of notes		$ 772,100,000		$ 804,800,000
3.75% Notes due 2027
Borrowings
Long-term debt, carrying amount		$ 600,000,000.0		$ 600,000,000.0
Interest rate (as a percent)		3.75%		3.75%
3.75% Notes due 2027 | Significant Observable Inputs (Level 2)
Borrowings
Fair value of notes		$ 660,700,000		$ 679,300,000
3.50% Notes due 2024
Borrowings
Long-term debt, carrying amount		$ 400,000,000.0		$ 400,000,000.0
Interest rate (as a percent)		3.50%		3.50%
3.50% Notes due 2024 | Significant Observable Inputs (Level 2)
Borrowings
Fair value of notes		$ 427,700,000		$ 438,300,000
0.55% notes due 2023
Borrowings
Long-term debt, carrying amount		$ 300,000,000.0		0
Interest rate (as a percent)	0.55%	0.55%
Notes issued in public offering	$ 300,000,000
Debt discount	2,600,000
Proceeds from public offering of notes	297,400,000
Debt issuance costs	$ 600,000
0.55% notes due 2023 | Significant Observable Inputs (Level 2)
Borrowings
Fair value of notes		$ 299,900,000		0
3.75% Notes due 2022
Borrowings
Long-term debt, carrying amount		$ 350,000,000.0		$ 350,000,000.0
Interest rate (as a percent)		3.75%		3.75%
3.75% Notes due 2022 | Significant Observable Inputs (Level 2)
Borrowings
Fair value of notes		$ 359,700,000		$ 366,900,000
Revolving credit facility | Letter of credit
Borrowings
Availability under revolving line of credit		52,300,000
Maximum borrowing capacity		$ 80,000,000