Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Sep. 30, 2016		Oct. 02, 2015		Oct. 03, 2014
Income Statement [Abstract]
Net revenue	$ 3,289.0		$ 3,258.4		$ 2,291.5
Cost of goods sold	1,623.8		1,703.9		1,268.8
Gross profit	1,665.2		1,554.5		1,022.7
Operating expenses:
Research and development	312.4		303.2		252.2
Selling, general and administrative	195.9		191.3		179.1
Amortization of intangibles	33.4		33.5		25.9
Restructuring and other charges	4.8		3.4		0.3
Total operating expenses	546.5		531.4		457.5
Operating income	1,118.7		1,023.1		565.2
Other (expense) income, net	(6.6)		0.5		0.0
Merger termination fee	88.5		0.0		0.0
Income before income taxes	1,200.6		1,023.6		565.2
Provision for income taxes	205.4		225.3		107.5
Net income	$ 995.2		$ 798.3		$ 457.7
Earnings per share:
Basic (in dollars per share)	$ 5.27	[1]	$ 4.21	[1]	$ 2.44
Diluted (in dollars per share)	$ 5.18	[1]	$ 4.10	[1]	$ 2.38
Weighted average shares:
Basic (in shares)	188.7		189.5		187.2
Diluted (in shares)	192.1		194.9		192.6
Cash dividends declared and paid per share (in dollars per share)	$ 1.06		$ 0.65		$ 0.22

[1] Earnings per share calculations for each of the quarters are based on the weighted average number of shares outstanding and included common stock equivalents in each period. Therefore, the sums of the quarters do not necessarily equal the full year earnings per share.