Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Net sales	$ 1,237.9	$ 1,340.5	$ 2,431.9	$ 2,687.8
Cost of sales	733.3	794.0	1,463.0	1,608.2
Gross profit	504.6	546.5	968.9	1,079.6
Operating expenses
Distribution	21.6	22.5	42.7	44.3
Research and development	42.6	47.0	82.3	92.2
Selling	155.6	171.6	310.6	352.4
Administration	98.2	104.3	203.6	211.8
Impairment charges	27.4	10.5	39.6	414.4
Restructuring charges	12.1	5.8	50.8	11.3
Other operating income	(1.7)	0.0	(38.0)	0.0
Total operating expenses	355.8	361.7	691.6	1,126.4
Operating income (loss)	148.8	184.8	277.3	(46.8)
Change in financial asset	38.7	910.8	21.6	1,115.3
Interest expense, net	45.1	57.4	98.4	108.6
Other expense, net	6.1	28.8	2.5	31.3
Loss on extinguishment of debt	135.2	0.0	135.2	0.4
Income (loss) before income taxes	(76.3)	(812.2)	19.6	(1,302.4)
Income tax expense (benefit)	(6.7)	(277.9)	17.6	(238.9)
Net income (loss)	$ (69.6)	$ (534.3)	$ 2.0	$ (1,063.5)
Earnings (loss) per share
Basic earnings per share (in dollars per share)	$ (0.49)	$ (3.73)	$ 0.01	$ (7.43)
Diluted earnings per share (in dollars per share)	$ (0.49)	$ (3.73)	$ 0.01	$ (7.43)
Weighted-average shares outstanding
Basic	143.3	143.2	143.3	143.2
Diluted	143.3	143.2	143.6	143.2
Dividends declared per share (in dollars per share)	$ 0.160	$ 0.145	$ 0.32	$ 0.29