Fair Value Measurements (Notes)

9 Months Ended

Sep. 30, 2011

Fair Value Disclosures [Abstract]

Fair Value Disclosures [Text Block]

Fair Value Measurements

The Company determines the fair values of its financial instruments based on a fair value hierarchy, which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Fair value is defined as the price that would be received upon sale of an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The fair value assumes that the transaction to sell the asset or transfer the liability occurs in the principal or most advantageous market for the asset or liability and establishes that the fair value of an asset or liability shall be determined based on the assumptions that market participants would use in pricing the asset or liability. The classification of a financial asset or liability within the hierarchy is based upon the lowest level input that is significant to the fair value measurement. The fair value hierarchy prioritizes the inputs into three levels that may be used to measure fair value:

Level 1 – Inputs are unadjusted quoted prices in active markets for identical assets or liabilities.

Level 2 – Inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument. These inputs are valued using market based approaches.

Level 3 – Inputs are unobservable inputs based on the Company’s assumptions. These inputs, if any, are valued using internal financial models.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following tables provide a summary of assets measured at fair value on a recurring basis and as reported in the condensed consolidated balance sheets (in millions):

	Fair Value Measurements at September 30, 2011 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
Available-for-sale debt securities:
U.S. government securities	$	144.8	$	216.7	$	—	$	361.5
Government-sponsored enterprise obligations	274.2		94.2		—		368.4
Foreign government debt securities	—		2.4		—		2.4
Corporate debt securities (1)	—		517.4		—		517.4
Certificate of deposit	—		38.0		—		38.0
Asset-backed securities	—		111.9		—		111.9
Money market funds (2)	1,261.4		—		—		1,261.4
Total available-for-sale debt securities	1,680.4		980.6		—		2,661.0
Total available-for-sale securities	1,680.4		980.6		—		2,661.0
Trading securities:
Mutual funds (3)	11.3		—		—		11.3
Total trading securities	11.3		—		—		11.3
Derivative assets:
Foreign exchange contracts	—		0.7		—		0.7
Total derivative assets	—		0.7		—		0.7
Total assets measured at fair value	$	1,691.7	$	981.3	$	—	$	2,673.0

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(1) Balance includes $1.8 million of restricted investments measured at fair market value, related to the Company's India Gratuity Trust.

(2) Balance includes $87.0 million of restricted investments measured at fair market value, related to the Company's D&O trust and acquisition related escrows.

(3) Balance includes $1.2 million of restricted investments measured at fair market value, related to the Company's India Gratuity Trust.

	Fair Value Measurements at September 30, 2011 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
Reported as:
Cash equivalents	$	1,174.4	$	—	$	—	$	1,174.4
Short-term investments	140.9		491.5		—		632.4
Long-term investments	288.2		487.3		—		775.5
Restricted cash and investments	88.2		1.8		—		90.0
Prepaid expenses and other current assets	—		0.7		—		0.7
Total assets measured at fair value	$	1,691.7	$	981.3	$	—	$	2,673.0

	Fair Value Measurements at December 31, 2010 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
Available-for-sale debt securities:
U.S. government securities (1)	$	54.9	$	180.8	$	—	$	235.7
Government-sponsored enterprise obligations	208.9		10.1		—		219.0
Foreign government debt securities	21.0		26.0		—		47.0
Commercial paper	—		13.5		—		13.5
Corporate debt securities (2)	2.7		461.7		—		464.4
Certificate of deposit	—		21.0		—		21.0
Asset-backed securities	—		90.0		—		90.0
Money market funds (3)	1,154.2		—		—		1,154.2
Total available-for-sale debt securities	1,441.7		803.1		—		2,244.8
Total available-for-sale securities	1,441.7		803.1		—		2,244.8
Trading securities:
Mutual funds	8.1		—		—		8.1
Total trading securities	8.1		—		—		8.1
Derivative assets:
Foreign exchange contracts	—		0.4		—		0.4
Total derivative assets	—		0.4		—		0.4
Total assets measured at fair value	$	1,449.8	$	803.5	$	—	$	2,253.3

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(1) Balance includes $0.6 million of restricted investments measured at fair market value, related to an acquisition completed in 2005. For additional information regarding the Company's restricted investments, see Note 5, Cash, Cash Equivalents, and Investments, under the heading “Restricted Cash.” Restricted investments are included in the restricted cash balance in the condensed consolidated balance sheet.

(2) Balance includes $2.7 million of restricted investments measured at fair market value, related to the Company's India Gratuity Trust.

(3) Balance includes $114.3 million of restricted investments measured at fair market value, related to the Company's D&O trust and acquisition related escrows.

	Fair Value Measurements at December 31, 2010 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
Reported as:
Cash equivalents	$	1,039.9	$	85.7	$	—	$	1,125.6
Short-term investments	150.7		323.8		—		474.5
Long-term investments	142.2		393.0		—		535.2
Restricted cash	117.0		0.6		—		117.6
Prepaid expenses and other current assets	—		0.4		—		0.4
Total assets measured at fair value	$	1,449.8	$	803.5	$	—	$	2,253.3

As of September 30, 2011, and December 31, 2010, the Company had $4.2 million and $2.6 million, respectively, of derivative liabilities measured at fair value on a recurring basis. The Company recorded the derivative liabilities, which related to its foreign exchange contracts, within other accrued liabilities in its condensed consolidated balance sheets. These liabilities were measured using significant other observable remaining inputs (Level 2) pursuant to the fair value hierarchy.

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 and nine months ended September 30, 2011, and 2010, 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 cost-method investments, are measured at fair value on a nonrecurring basis if impairment is indicated. As of September 30, 2011, and December 31, 2010, the carrying value of privately-held equity investments measured at fair value on a nonrecurring basis was 0.4 million and $0.8 million, respectively. These privately-held equity investments, which are normally carried at cost, were measured at fair value due to events and circumstances that the Company identified as significantly impacting the fair value of the investments. The Company measured the fair value of its privately held equity investments using an analysis of the financial condition and near-term prospects of the investee, including recent financing activities and their capital structure. As a result, the Company recognized an impairment loss of $1.8 million in the three and nine months ended September 30, 2011, and classified the investment as Level 3 assets due to the absence of quoted market prices and inherent lack of liquidity. The Company had no impairment charges against its privately-held equity investments in the three and nine months ended September 30, 2010. The Company had no liabilities measured at fair value on a nonrecurring basis as of September 30, 2011 and December 31, 2010.

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 9, Financing, and was determined using quoted market prices (Level 1).