Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Oct. 03, 2014	Sep. 27, 2013	Sep. 28, 2012
Cash flows from operating activities:
Net Income	$ 457.7	$ 278.1	$ 202.0
Adjustments to reconcile net income to net cash provided by operating activities:
Share-based compensation	86.0	71.7	72.2
Depreciation	96.8	74.3	69.5
Amortization of intangible assets	25.9	29.1	33.2
Contribution of common shares to savings and retirement plans	17.1	17.1	16.1
Deferred income taxes	(3.3)	(13.7)	(12.9)
Excess tax benefit from share-based compensation	(40.8)	(10.8)	(6.8)
Change in fair value of contingent consideration	0	0	(5.4)
Other	(1.0)	(0.3)	(0.5)
Changes in assets and liabilities net of acquired balances:
Receivables, net	(12.4)	4.9	(109.2)
Inventory	(6.1)	3.4	(19.3)
Other current and long-term assets	7.3	(0.2)	(9.5)
Accounts payable	74.2	(14.1)	15.2
Other current and long-term liabilities	62.4	32.2	13.8
Net cash provided by operating activities	772.4	499.7	285.2
Cash flows from investing activities:
Capital expenditures	(208.6)	(123.8)	(94.1)
Payments for acquisitions, net of cash acquired	(148.5)	0	(229.6)
Sales and maturities of short term investments	0	0.8	20.9
Net cash used in investing activities	(357.1)	(123.0)	(302.8)
Cash flows from financing activities:
Retirement of debt and line of credit	0	0	(48.1)
Payment of Contingent Consideration	0	(1.1)	(52.9)
Excess tax benefit from share-based compensation	40.8	10.8	6.8
Repurchase of common stock - payroll tax withholdings on equity awards	(22.1)	(18.6)	(18.6)
Repurchase of common stock - share repurchase program	(165.7)	(184.9)	(12.4)
Dividends paid	(41.4)	0	0
Net proceeds from exercise of stock options	67.8	21.1	39.1
Net cash used in financing activities	(120.6)	(172.7)	(86.1)
Net increase (decrease) in cash and cash equivalents	294.7	204.0	(103.7)
Cash and cash equivalents at beginning of period	511.1	307.1	410.8
Cash and cash equivalents at end of period	805.8	511.1	307.1
Supplemental cash flow disclosures:
Income taxes paid	63.2	26.2	19.8
Interest paid	$ 0	$ 0	$ 0.2