The following assets and liabilities are recorded at fair value on a recurring basis (in millions):


	As of September 30, 2012
			Fair Value Measurements at Reporting Date Using:
Description	Recorded Balance		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Available-for-sale securities
Corporate debt securities	$	338.5	$	—	$	338.5	$	—
U.S. government and agency debt securities		215.3		—		215.3		—
Foreign government debt securities		2.8		—		2.8		—
Commercial paper		139.7		—		139.7		—
Certificates of deposit		105.4		—		105.4		—

Total available-for-sale securities		801.7		—		801.7		—
Derivatives, current and long-term
Foreign currency forward contracts and options		9.6		—		9.6		—
Interest rate swaps		35.6		—		35.6		—

	$	846.9	$	—	$	846.9	$	—

Liabilities
Derivatives, current and long-term
Foreign currency forward contracts and options	$	24.4	$	—	$	24.4	$	—


	As of December 31, 2011
			Fair Value Measurements at Reporting Date Using:
Description	Recorded Balance		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Available-for-sale securities
Corporate debt securities	$	324.7	$	—	$	324.7	$	—
U.S. government and agency debt securities		177.2		—		177.2		—
Municipal bonds		1.0		—		1.0		—
Foreign government debt securities		6.8		—		6.8		—
Commercial paper		74.5		—		74.5		—
Certificates of deposit		88.5		—		88.5		—

Total available-for-sale securities		672.7		—		672.7		—
Derivatives, current and long-term
Foreign currency forward contracts and options		18.3		—		18.3		—
Interest rate swaps		27.8		—		27.8		—

	$	718.8	$	—	$	718.8	$	—

Liabilities
Derivatives, current and long-term
Foreign currency forward contracts and options	$	25.2	$	—	$	25.2	$	—
Cross -currency interest rate swaps		8.2		—		8.2		—

	$	33.4	$	—	$	33.4	$	—