Condensed Consolidated and Combined Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 27, 2014	Jun. 28, 2013	Jun. 27, 2014	Jun. 28, 2013
Income Statement [Abstract]
Net sales	$ 653.1	$ 570.0	$ 1,751.1	$ 1,659.3
Cost of sales	368.8	304.2	948.6	886.5
Gross profit	284.3	265.8	802.5	772.8
Selling, general and administrative expenses	221.3	166.9	561.6	474.4
Research and development expenses	42.7	44.8	123.1	122.4
Separation costs	1.8	44.2	6.6	70.6
Restructuring charges, net	23.8	11.3	53.5	17.9
Gains on divestiture and license	(0.9)	(0.8)	(14.7)	(2.2)
Operating income (loss)	(4.4)	(0.6)	72.4	89.7
Interest expense	(22.7)	(9.4)	(44.9)	(9.6)
Interest income	0.3	0	1.1	0.1
Other (expense) income, net	0.1	2.1	(0.9)	2.3
Income (loss) from continuing operations before income taxes	(26.7)	(7.9)	27.7	82.5
Provision for (benefit from) income taxes	(2.4)	19.8	(6.1)	55.9
Income (loss) from continuing operations	(24.3)	(27.7)	33.8	26.6
Income (loss) from discontinued operations, net of income taxes	0.2	(0.2)	(0.7)	(1.3)
Net income (loss)	$ (24.1)	$ (27.9)	$ 33.1	$ 25.3
Basic earnings (loss) per share (Note 7):
Income (loss) from continuing operations (in usd per share)	$ (0.42)	$ (0.48)	$ 0.58	$ 0.46
Loss from discontinued operations (in usd per share)	$ 0.00	$ 0.00	$ (0.01)	$ (0.02)
Net income (loss) (in usd per share)	$ (0.41)	$ (0.48)	$ 0.57	$ 0.44
Basic weighted-averaged shares outstanding (in shares)	58.5	57.7	58.2	57.7
Diluted earnings (loss) per share (Note 7):
Income (loss) from continuing operations (in usd per share)	$ (0.42)	$ (0.48)	$ 0.57	$ 0.46
Loss from discontinued operations (in usd per share)	$ 0.00	$ 0.00	$ (0.01)	$ (0.02)
Net income (loss) (in usd per share)	$ (0.41)	$ (0.48)	$ 0.56	$ 0.44
Diluted weighted-average shares outstanding (in shares)	58.5	57.7	59.0	57.7