Fair Value Measurements (Notes)

3 Months Ended

Mar. 31, 2013

Fair Value Disclosures [Abstract]

Fair Value Disclosures [Text Block]

Fair Value Measurements

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following tables provide a summary of assets and liabilities measured at fair value on a recurring basis and as reported in the Condensed Consolidated Balance Sheets (in millions):

	Fair Value Measurements at March 31, 2013 Using:
	Quoted Prices in Active Markets For Identical Assets		Significant Other Observable Remaining Inputs		Significant Other Unobservable Remaining Inputs
	(Level 1)		(Level 2)		(Level 3)		Total
Assets measured at fair value:
Available-for-sale securities:
Asset-backed securities	$	—	$	234.8	$	—	$	234.8
Certificate of deposit	—		45.0		—		45.0
Corporate debt securities	—		615.7		—		615.7
Foreign government debt securities	—		15.8		—		15.8
Government-sponsored enterprise obligations	265.6		5.0		—		270.6
Money market funds (1)	839.1		—		—		839.1
Mutual funds (2)	3.0		—		—		3.0
Publicly-traded equity securities	2.6		—		—		2.6
U.S. government securities	237.2		199.1		—		436.3
Total available-for-sale securities	1,347.5		1,115.4		—		2,462.9
Trading securities in mutual funds (3)	13.8		—		—		13.8
Derivative assets:
Foreign exchange contracts	—		1.6		—		1.6
Total assets measured at fair value	$	1,361.3	$	1,117.0	$	—	$	2,478.3
Liabilities measured at fair value:
Derivative liabilities:
Foreign exchange contracts	$	—	$	1.1	$	—	$	1.1
Total liabilities measured at fair value	$	—	$	1.1	$	—	$	1.1
Total assets measured at fair value, reported as:
Cash equivalents	$	749.6	$	6.3	$	—	$	755.9
Restricted investments	92.5		—		—		92.5
Short-term investments	262.5		350.6		—		613.1
Long-term investments	256.7		758.5		—		1,015.2
Prepaid expenses and other current assets	—		1.6		—		1.6
Total assets measured at fair value	$	1,361.3	$	1,117.0	$	—	$	2,478.3
Total liabilities measured at fair value, reported as:
Other accrued liabilities	$	—	$	1.1	$	—	$	1.1
Total liabilities measured at fair value	$	—	$	1.1	$	—	$	1.1

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⁽¹⁾  Balance includes $89.5 million of restricted investments measured at fair market value, related to the Company's D&O trust and acquisition-related escrows.

⁽²⁾  Balance relates to the restricted investments measured at fair market value of the Company's India Gratuity Trust.

⁽³⁾  Balance relates to investments measured at fair value related to the Company's non-qualified deferred compensation plan assets.

	Fair Value Measurements at December 31, 2012 Using:
	Quoted Prices in Active Markets For Identical Assets		Significant Other Observable Remaining Inputs		Significant Other Unobservable Remaining Inputs
	(Level 1)		(Level 2)		(Level 3)		Total
Assets measured at fair value:
Available-for-sale securities:
Asset-backed securities	$	—	$	226.4	$	—	$	226.4
Certificate of deposit	—		42.5		—		42.5
Commercial paper	—		22.4		—		22.4
Corporate debt securities	—		535.6		—		535.6
Foreign government debt securities	—		5.0		—		5.0
Government-sponsored enterprise obligations	254.9		16.1		—		271.0
Money market funds (1)	1,145.2		—		—		1,145.2
Mutual funds (2)	1.0		2.0		—		3.0
Publicly-traded equity securities	2.9		—		—		2.9
U.S. government securities	275.9		218.6		—		494.5
Total available-for-sale securities	1,679.9		1,068.6		—		2,748.5
Trading securities in mutual funds (3)	12.6		—		—		12.6
Derivative assets:
Foreign exchange contracts	—		3.5		—		3.5
Total assets measured at fair value	$	1,692.5	$	1,072.1	$	—	$	2,764.6
Liabilities measured at fair value:
Derivative liabilities:
Foreign exchange contracts	$	—	$	0.1	$	—	$	0.1
Total liabilities measured at fair value	$	—	$	0.1	$	—	$	0.1
Total assets measured at fair value, reported as:
Cash equivalents	$	1,048.7	$	177.2	$	—	$	1,225.9
Restricted investments	103.6		2.0		—		105.6
Short-term investments	224.4		217.1		—		441.5
Long-term investments	315.8		672.3		—		988.1
Prepaid expenses and other current assets	—		3.5		—		3.5
Total assets measured at fair value	$	1,692.5	$	1,072.1	$	—	$	2,764.6
Total liabilities measured at fair value, reported as:
Other accrued liabilities	$	—	$	0.1	$	—	$	0.1
Total liabilities measured at fair value	$	—	$	0.1	$	—	$	0.1

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⁽¹⁾  Balance includes $102.6 million of restricted investments measured at fair market value, related to the Company's D&O trust and acquisition-related escrows.

⁽²⁾  Balance relates to the restricted investments measured at fair market value of the Company's India Gratuity Trust.

⁽³⁾  Balance relates to investments measured at fair value related to the Company's non-qualified deferred compensation plan assets.

The Company's Level 2 available-for-sale fixed income securities are priced using quoted market prices for similar instruments or non-binding market prices that are corroborated by observable market data. The Company uses inputs such as actual trade data, benchmark yields, broker/dealer quotes, or alternative pricing sources with reasonable levels of price transparency which are obtained from quoted market prices, independent pricing vendors, or other sources, to determine the ultimate fair value of these assets. The Company's policy is to recognize asset or liability transfers among Level 1, Level 2, and Level 3 as of the actual date of the events or change in circumstances that caused the transfer. During the three months ended March 31, 2013 and March 31, 2012, the Company had no transfers between levels of the fair value hierarchy of its assets or liabilities measured at fair value.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

Certain of the Company's assets, including intangible assets, goodwill, and privately-held investments, are measured at fair value on a nonrecurring basis if impairment is indicated. As of March 31, 2013 and December 31, 2012, the Company had no assets or liabilities measured at fair value on a nonrecurring basis.

Assets and Liabilities Not Measured at Fair Value

The carrying amounts of the Company's accounts receivable, financing receivables, accounts payable, and other accrued liabilities approximate fair value due to their short maturities. The fair value of the Company’s long-term debt is disclosed in Note 10, Long-Term Debt and Financing, and was determined using quoted market prices (Level 1).