Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 27, 2013	Sep. 28, 2012	Sep. 30, 2011
Cash flows from operating activities:
Net Income	$ 278.1	$ 202.0	$ 226.6
Adjustments to reconcile net income to net cash provided by operating activities:
Share-based compensation	71.7	72.2	58.3
Depreciation	74.3	69.5	59.8
Amortization of intangible assets and other	29.1	33.2	18.2
Contribution of common shares to savings and retirement plans	17.1	16.1	13.7
Deferred income taxes	(13.7)	(12.9)	(12.4)
Excess tax benefit from share-based compensation	(10.8)	(6.8)	(12.5)
Change in fair value of contingent consideration	0	(5.4)	0
Other	(0.3)	(0.5)	(0.2)
Changes in assets and liabilities net of acquired balances:
Receivables, net	4.9	(109.2)	12.9
Inventory	3.4	(19.3)	(49.7)
Other current and long-term assets	(0.2)	(9.5)	(1.7)
Accounts payable	(14.1)	15.2	(14.3)
Other current and long-term liabilities	32.2	13.8	41.9
Net cash provided by operating activities	499.7	285.2	365.8
Cash flows from investing activities:
Capital expenditures	(123.8)	(94.1)	(100.6)
Payments for acquisitions, net of cash acquired	0	(229.6)	(249.3)
Sales and maturities of short term investments	0.8	20.9	0
Net cash used in investing activities	(123.0)	(302.8)	(349.9)
Cash flows from financing activities:
Retirement of debt and line of credit	0	(48.1)	(50.0)
Payment of Contingent Consideration	(1.1)	(52.9)	0
Excess tax benefit from share-based compensation	10.8	6.8	12.5
Repurchase of common stock - payroll tax withholdings on equity awards	(18.6)	(18.6)	(20.1)
Repurchase of common stock - share repurchase program	(184.9)	(12.4)	(70.0)
Net proceeds from exercise of stock options	21.1	39.1	63.1
Net cash used in financing activities	(172.7)	(86.1)	(64.5)
Net increase (decrease) in cash and cash equivalents	204.0	(103.7)	(48.6)
Cash and cash equivalents at beginning of period	307.1	410.8	459.4
Cash and cash equivalents at end of period	511.1	307.1	410.8
Supplemental cash flow disclosures:
Income taxes paid	26.2	19.8	16.1
Interest paid	$ 0	$ 0.2	$ 0.5