Fair Value Measurement of Assets and Liabilities (Tables)

6 Months Ended

Jun. 30, 2014

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


	As of June 30, 2014
			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	$	323.8	$	—	$	323.8	$	—
U.S. government and agency debt securities		185.1		—		185.1		—
Foreign government debt securities		8.1		—		8.1		—
Commercial paper		314.6		—		314.6		—
Certificates of deposit		65.2		—		65.2		—

Total available-for-sale securities		896.8		—		896.8		—
Derivatives, current and long-term
Foreign currency forward contracts and options		30.3		—		30.3		—
Interest rate swaps		21.2		—		21.2		—

	$	948.3	$	—	$	948.3	$	—

Liabilities
Derivatives, current and long-term
Foreign currency forward contracts and options	$	17.1	$	—	$	17.1	$	—


	As of December 31, 2013
			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	$	457.9	$	—	$	457.9	$	—
U.S. government and agency debt securities		211.2		—		211.2		—
Foreign government debt securities		3.1		—		3.1		—
Commercial paper		68.3		—		68.3		—
Certificates of deposit		67.2		—		67.2		—

Total available-for-sale securities		807.7		—		807.7		—
Derivatives, current and long-term
Foreign currency forward contracts and options		68.7		—		68.7		—
Interest rate swaps		16.3		—		16.3		—

	$	892.7	$	—	$	892.7	$	—

Liabilities
Derivatives, current and long-term
Foreign currency forward contracts and options		20.6		—		20.6		—
Interest rate swaps		7.0		—		7.0		—

	$	27.6	$	—	$	27.6	$	—