Recent Accounting Pronouncements (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Income Tax Expense (Benefit)	$ 13.4	$ 4.3	$ (35.1)	$ 25.0
Diluted Earnings Per Share (in dollars per share)	$ 1.56	$ 1.30	$ 2.95	$ 2.31
Net Cash Provided by Operating Activities			$ 1,209.9	$ 1,248.3
Net Cash Used in Investing Activities			(477.3)	(1,235.3)
Net Cash Provided by Financing Activities			(1,082.3)	229.1
Adjustments for New Accounting Pronouncement [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net Cash Provided by Operating Activities				69.7
Net Cash Used in Investing Activities				12.7
Net Cash Provided by Financing Activities				$ (69.7)
Accounting Standards Update 2016-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Income Tax Expense (Benefit)			$ (35.0)
Diluted Earnings Per Share (in dollars per share)			$ 0.09