Assets and liabilities measured at fair value on a recurring basis (in millions):



			Fair Value Measurements at Reporting Date Using
	Balance at July 1, 2018		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	$	1,892.1	$	1,892.1	$	—	$	—
Short-term investments:
Available-for-sale securities
Corporate debt securities	11.8		—		11.8		—
Mortgage and other asset-backed securities	1.4		—		1.4		—
Total available-for-sale securities	13.2		—		13.2		—
Trading securities	71.3		71.3		—		—
Total short-term investments	84.5		71.3		13.2		—
Prepaid expenses and other current assets:
Derivative assets	25.1		0.8		24.3		—
Long-term investments:
Available-for-sale securities
Agency obligations	5.9		—		5.9		—
Corporate debt securities	108.9		—		108.9		—
Auction rate securities	5.9		—		—		5.9
Foreign government obligations	3.6		—		3.6		—
U.S. government treasury securities	103.6		103.6		—		—
State and local government obligations	4.8		—		4.8		—
Mortgage and other asset-backed securities	28.7		—		28.7		—
Total long-term investments	261.4		103.6		151.9		5.9
Other long-term assets:
Derivative assets	6.9		—		6.9		—
Total assets	$	2,270.0	$	2,067.8	$	196.3	$	5.9
Liabilities:
Accrued liabilities:
Derivative liabilities	$	7.0	$	1.2	$	5.8	$	—
Other long-term liabilities:
Derivative liabilities	53.6		—		53.6		—
Total liabilities	$	60.6	$	1.2	$	59.4	$	—



			Fair Value Measurements at Reporting Date Using
	Balance at Oct 1, 2017		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	$	2,462.3	$	2,462.3	$	—	$	—
Short-term investments:
Available-for-sale securities
Agency obligations	7.5		—		7.5		—
Commercial paper	2.0		—		2.0		—
Corporate debt securities	49.4		—		49.4		—
Foreign government obligations	7.1		—		7.1		—
U.S. government treasury securities	81.4		81.4		—		—
State and local government obligations	2.0		—		2.0		—
Certificates of deposit	2.3		—		2.3		—
Total available-for-sale securities	151.7		81.4		70.3		—
Trading securities	76.9		76.9		—		—
Total short-term investments	228.6		158.3		70.3		—
Prepaid expenses and other current assets:
Derivative assets	13.4		0.1		13.3		—
Long-term investments:
Available-for-sale securities
Agency obligations	21.8		—		21.8		—
Corporate debt securities	207.4		—		207.4		—
Auction rate securities	5.9		—		—		5.9
Foreign government obligations	17.1		—		17.1		—
U.S. government treasury securities	127.4		127.4		—		—
State and local government obligations	7.0		—		7.0		—
Mortgage and other asset-backed securities	155.7		—		155.7		—
Total long-term investments	542.3		127.4		409.0		5.9
Other long-term assets:
Derivative assets	24.4		—		24.4		—
Total assets	$	3,271.0	$	2,748.1	$	517.0	$	5.9
Liabilities:
Accrued liabilities:
Derivative liabilities	$	16.4	$	2.5	$	13.9	$	—
Other long-term liabilities:
Derivative liabilities	22.1		—		22.1		—
Total liabilities	$	38.5	$	2.5	$	36.0	$	—