Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jun. 27, 2015	Jul. 02, 2016	Jun. 27, 2015
Statement of Comprehensive Income [Abstract]
Net loss	$ (534.3)	$ (22.2)	$ (1,063.5)	$ (44.5)
Other comprehensive income (loss):
Foreign currency translation adjustments	(107.6)	118.6	43.9	90.8
Change in fair value of derivative financial instruments, net of tax	(1.3)	4.8	(7.0)	5.5
Change in fair value of investment securities, net of tax	2.4	(6.1)	8.5	(4.9)
Change in post-retirement and pension liability adjustments, net of tax	(0.3)	5.1	0.6	4.7
Other comprehensive income (loss), net of tax	(106.8)	122.4	46.0	96.1
Comprehensive income (loss)	$ (641.1)	$ 100.2	$ (1,017.5)	$ 51.6