Consolidated and Combined Statements of Income - USD ($) shares in Millions, $ in Millions		12 Months Ended
		Sep. 30, 2016	Sep. 25, 2015	Sep. 26, 2014
Net sales		$ 3,380.8	$ 2,923.1	$ 1,650.3
Cost of sales		1,525.8	1,300.2	765.7
Gross profit		1,855.0	1,622.9	884.6
Selling, general and administrative expenses		925.3	1,023.8	611.0
Research and development expenses		262.2	203.3	140.5
Separation costs		0.0	0.0	9.6
Other Asset Impairment Charges		16.9	0.0	27.1
Restructuring charges, net		33.3	45.0	68.0
Non-restructuring impairment charges		16.9	0.0	27.1
Nonoperating Gains (Losses)		0.0	3.0	15.0
Gain on divestiture and license		0.0	(3.0)	(15.0)
Operating income		617.3	353.8	43.4
Interest expense		(384.6)	(255.6)	(82.6)
Interest income		1.3	1.0	1.5
Other (expense) income, net		(0.6)	8.1	3.1
Income (loss) from continuing operations before income taxes	[1]	233.4	107.3	(34.6)
Benefit from income taxes	[1]	(255.6)	(129.3)	(12.6)
Income (loss) from continuing operations		489.0	236.6	(22.0)
Income (loss) from discontinued operations, net of tax expense (benefit) of $43.5, $47.9 and $(32.2).		154.7	88.1	(297.3)
Net income (loss)		$ 643.7	$ 324.7	$ (319.3)
Basic earnings per share (Note 8):
Income (Loss) from Continuing Operations, Per Basic Share		$ 4.42	$ 2.03	$ (0.34)
Income (Loss) from Discontinued Operations, Per Basic Share		1.40	0.75	(4.58)
Net income (in usd per share)		$ 5.82	$ 2.78	$ (4.92)
Weighted Average Number of Shares Outstanding, Basic		110.6	115.8	64.9
Diluted earnings per share (Note 8):
Income (Loss) from Continuing Operations, Per Diluted Share		$ 4.39	$ 2.00	$ (0.34)
Income (Loss) from Discontinued Operations, Per Diluted Share		1.39	0.75	(4.58)
Net income (in usd per share)		$ 5.77	$ 2.75	$ (4.92)
Diluted weighted-average shares oustanding (in shares)		111.5	117.2	64.9

[1] Domestic reflects U.K. in fiscal 2016 and 2015, and U.S. federal and state in fiscal 2014.