Fair Value Measurements (Tables)

9 Months Ended

Jun. 29, 2014

Fair Value Disclosures [Abstract]

Assets And Liabilities Measured At Fair Value On A Recurring Basis

Assets and Liabilities Measured at Fair Value on a Recurring Basis (in millions):

			Fair Value Measurements at Reporting Date Using
	Balance at Jun 29, 2014		Quoted Prices in Active Markets for  Identical Assets (Level 1)		Significant  Other Observable  Inputs (Level 2)		Significant Unobservable  Inputs (Level 3)
Assets:
Cash and cash equivalents	$	1,019.4	$	1,019.4	$	—	$	—
Short-term investments:
Available-for-sale securities
Corporate debt securities	14.3		—		14.3		—
Foreign government obligations	45.8		—		45.8		—
US government treasury securities	11.0		11.0		—		—
State and local government obligations	12.0		—		12.0		—
Certificates of deposit	20.0		—		20.0		—
Total available-for-sale securities	103.1		11.0		92.1		—
Trading securities	73.8		73.8		—		—
Total short-term investments	176.9		84.8		92.1		—
Prepaid expenses and other current assets:
Derivative assets	18.1		0.3		17.8		—
Long-term investments:
Available-for-sale securities
Agency obligations	10.7		—		10.7		—
Corporate debt securities	342.5		—		342.5		—
Auction rate securities	13.6		—		—		13.6
Foreign government obligations	85.6		—		85.6		—
US government treasury securities	243.5		243.5		—		—
State and local government obligations	11.2		—		11.2		—
Mortgage and asset-backed securities	125.6		—		125.6		—
Total long-term investments	832.7		243.5		575.6		13.6
Other assets:
Derivative assets	6.2		—		6.2		—
Total	$	2,053.3	$	1,348.0	$	691.7	$	13.6
Liabilities:
Accrued liabilities:
Derivative liabilities	$	3.8	$	1.3	$	2.5	$	—
Other long-term liabilities:
Derivative liabilities	1.9		—		1.9		—
Total	$	5.7	$	1.3	$	4.4	$	—

			Fair Value Measurements at Reporting Date Using
	Balance at Sep 29, 2013		Quoted Prices in Active Markets for  Identical Assets (Level 1)		Significant  Other Observable  Inputs (Level 2)		Significant Unobservable  Inputs (Level 3)
Assets:
Cash and cash equivalents	$	2,575.7	$	2,575.7	$	—	$	—
Short-term investments:
Available-for-sale securities
Agency obligations	20.0		—		20.0		—
Commercial paper	127.0		—		127.0		—
Corporate debt securities	57.5		—		57.5		—
US government treasury securities	352.9		352.9		—		—
Certificates of deposit	34.1		—		34.1		—
Total available-for-sale securities	591.5		352.9		238.6		—
Trading securities	66.6		66.6		—		—
Total short-term investments	658.1		419.5		238.6		—
Prepaid expenses and other current assets:
Derivative assets	12.5		—		12.5		—
Long-term investments:
Available-for-sale securities
Agency obligations	8.1		—		8.1		—
Corporate debt securities	36.8		—		36.8		—
Auction rate securities	13.4		—		—		13.4
Total long-term investments	58.3		—		44.9		13.4
Other assets:
Derivative assets	11.4		—		11.4		—
Total	$	3,316.0	$	2,995.2	$	307.4	$	13.4
Liabilities:
Accrued liabilities:
Derivative liabilities	$	3.5	$	—	$	3.5	$	—
Other long-term liabilities:
Derivative liabilities	0.5		—		0.5		—
Total	$	4.0	$	—	$	4.0	$	—