Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016	Dec. 31, 2016	Dec. 31, 2015
Non-cash Activities [Abstract]
Fair value of assets of acquired businesses	$ 376.5	$ 1,669.0
Cash paid for acquired businesses	(311.8)	(1,109.4)
Liabilities assumed of acquired businesses	64.7	559.6
Declared but unpaid dividends	59.9	60.3
Issuance of stock upon vesting of restricted stock units	34.3	44.5
Cash and Cash Equivalents	713.3		$ 786.2
Cash, Cash Equivalents and Restricted Cash	736.9	$ 841.5	810.8	$ 466.3
Other Current Assets [Member]
Non-cash Activities [Abstract]
Restricted Cash	20.2		18.0
Other Assets [Member]
Non-cash Activities [Abstract]
Restricted Cash	$ 3.4		$ 6.6