Debt (Details) - USD ($) $ in Millions		6 Months Ended
	Apr. 05, 2017	Jun. 30, 2017	Dec. 31, 2016
Long-Term Debt
Less deferred debt issuance costs		$ (15.2)	$ (12.3)
Total debt		3,396.6	3,010.7
Less current portion		376.0	375.2
Total long-term debt		3,020.6	2,635.5
Total debt, Approximate Fair Value		3,464.2	3,062.2
Less short-term debt, Approximate Fair Value		376.0	375.7
Long-term debt, Approximate Fair Value		3,088.2	2,686.5
The “Revolving Credit Facility”
Long-Term Debt
Maximum borrowing capacity		2,000.0
Borrowings under the Revolving Credit Facility		0.0
Commercial Paper Program
Long-Term Debt
Debt carrying amount, net of unamortized discount before deferred debt issuance costs		654.7	1,018.9
Total debt, Approximate Fair Value		654.7	$ 1,018.9
Maximum borrowing capacity		$ 2,000.0
Maximum maturity term		397 days
Average interest rate (as a percent)		1.46%
Senior Notes
Long-Term Debt
Redemption price as a percentage of principal amount		100.00%
1.55% Senior Notes due September 2017
Long-Term Debt
Stated interest rate (as a percent)		1.55%	1.55%
Debt carrying amount, net of unamortized discount before deferred debt issuance costs		$ 375.0	$ 374.9
Total debt, Approximate Fair Value		$ 375.0	$ 375.4
2.55% Senior Notes due January 2019
Long-Term Debt
Stated interest rate (as a percent)		2.55%	2.55%
Debt carrying amount, net of unamortized discount before deferred debt issuance costs		$ 749.6	$ 749.5
Total debt, Approximate Fair Value		$ 756.6	$ 758.3
3.125% Senior Notes due September 2021
Long-Term Debt
Stated interest rate (as a percent)		3.125%	3.125%
Debt carrying amount, net of unamortized discount before deferred debt issuance costs		$ 374.8	$ 374.8
Total debt, Approximate Fair Value		$ 383.9	$ 380.4
4.00% Senior Notes due February 2022
Long-Term Debt
Stated interest rate (as a percent)		4.00%	4.00%
Debt carrying amount, net of unamortized discount before deferred debt issuance costs		$ 499.4	$ 499.4
Total debt, Approximate Fair Value		$ 530.2	523.7
2.20% Senior Notes due April 2020
Long-Term Debt
Stated interest rate (as a percent)	2.20%	2.20%
Debt carrying amount, net of unamortized discount before deferred debt issuance costs		$ 399.7
Total debt, Approximate Fair Value		$ 400.9
Debt instrument, principal amount	$ 400.0
Debt instrument, face amount, net of discount (as a percent)	99.922%
Redemption price as a percentage of principal amount	100.00%
3.20% Senior Notes due April 2024
Long-Term Debt
Stated interest rate (as a percent)	3.20%	3.20%
Debt carrying amount, net of unamortized discount before deferred debt issuance costs		$ 349.6
Total debt, Approximate Fair Value		353.9
Debt instrument, principal amount	$ 350.0
Debt instrument, face amount, net of discount (as a percent)	99.888%
Redemption price as a percentage of principal amount	100.00%
Notes payable to foreign banks and other debt
Long-Term Debt
Debt carrying amount, net of unamortized discount before deferred debt issuance costs		9.0	5.5
Total debt, Approximate Fair Value		9.0	$ 5.5
2.20% and 3.20% Senior Notes due April, 2020 and 2024, respectively
Long-Term Debt
Debt issuance costs incurred		$ 5.2