Condensed Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 29, 2018	Jun. 30, 2017	Jun. 29, 2018	Jun. 30, 2017
Net sales	$ 631.7	$ 600.1	$ 1,204.3	$ 1,160.1
Cost of sales	314.7	280.4	610.5	540.3
Gross profit	317.0	319.7	593.8	619.8
Selling, general and administrative expenses	164.3	214.6	356.7	432.2
Research and development expenses	81.3	52.3	145.4	97.3
Restructuring charges, net	58.7	0.6	81.8	10.9
Losses (gains) on divestiture	0.0	2.1	0.0	(57.0)
Operating income	12.7	50.1	9.9	136.4
Interest expense	(95.1)	(92.2)	(186.5)	(186.4)
Interest income	1.4	0.6	4.6	1.5
Other (expense) income, net	(0.5)	6.3	4.1	(73.6)
Loss from continuing operations before income taxes	(81.5)	(35.2)	(167.9)	(122.1)
Income tax benefit	(53.4)	(53.6)	(96.8)	(95.6)
Income from continuing operations	(28.1)	18.4	(71.1)	(26.5)
Income from discontinued operations, net of income taxes	43.7	44.4	68.7	488.5
Net income (loss)	$ 15.6	$ 62.8	$ (2.4)	$ 462.0
Basic earnings per share (Note 8):
Income from continuing operations, per share	$ (0.34)	$ 0.19	$ (0.84)	$ (0.26)
(Loss) income from discontinued operations, per share	0.53	0.45	0.81	4.84
Net income, per share	$ 0.19	$ 0.64	$ (0.03)	$ 4.58
Basic weighted-averaged shares outstanding (in shares)	83.2	98.5	84.7	100.9
Diluted earnings per share (Note 8):
Income from continuing operations, per share	$ (0.34)	$ 0.19	$ (0.84)	$ (0.26)
(Loss) income from discontinued operations, per share	0.53	0.45	0.81	4.84
Net income, per share	$ 0.19	$ 0.64	$ (0.03)	$ 4.58
Diluted weighted-average shares outstanding (in shares)	83.2	98.7	84.7	100.9