Condensed Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 28, 2018	Sep. 29, 2017	Sep. 28, 2018	Sep. 29, 2017
Net sales	$ 640.0	$ 600.6	$ 1,844.3	$ 1,760.7
Cost of sales	326.2	268.0	936.7	808.3
Gross profit	313.8	332.6	907.6	952.4
Selling, general and administrative expenses	164.0	186.3	520.7	618.5
Research and development expenses	78.5	46.9	223.9	144.2
Restructuring charges, net	14.7	15.4	96.5	26.3
Losses (gains) on divestiture	0.6	0.4	0.6	(56.6)
Operating income	56.0	83.6	65.9	220.0
Interest expense	(93.6)	(92.6)	(280.1)	(279.0)
Interest income	2.0	1.3	6.6	2.8
Other income (expense), net	13.4	3.0	17.5	(70.6)
Loss from continuing operations before income taxes	(22.2)	(4.7)	(190.1)	(126.8)
Income tax benefit	(125.2)	(57.8)	(222.0)	(153.4)
Income from continuing operations	103.0	53.1	31.9	26.6
Income from discontinued operations, net of income taxes	10.8	10.6	79.5	499.1
Net income	$ 113.8	$ 63.7	$ 111.4	$ 525.7
Basic earnings per share (Note 8):
Income from continuing operations, per share	$ 1.24	$ 0.55	$ 0.38	$ 0.27
Income from discontinued operations, per share	0.13	0.11	0.94	5.02
Net income, per share	$ 1.37	$ 0.66	$ 1.32	$ 5.28
Basic weighted-averaged shares outstanding (in shares)	83.2	96.7	84.2	99.5
Diluted earnings per share (Note 8):
Income from continuing operations, per share	$ 1.21	$ 0.55	$ 0.37	$ 0.27
Income from discontinued operations, per share	0.13	0.11	0.93	5.00
Net income, per share	$ 1.34	$ 0.66	$ 1.31	$ 5.27
Diluted weighted-average shares outstanding (in shares)	85.0	97.0	85.2	99.8