Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2012

Summary of assets and liabilities recorded at fair value



(In millions)	As of December 31, 2012		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	$	439.4	$	—	$	439.4	$	—
Marketable debt securities:
Corporate debt securities	1,001.0		—		1,001.0		—
Government securities	1,657.8		—		1,657.8		—
Mortgage and other asset backed securities	512.9		—		512.9		—
Marketable equity securities	9.0		9.0		—		—
Venture capital investments	20.3		—		—		20.3
Derivative contracts	1.8		—		1.8		—
Plan assets for deferred compensation	14.3		—		14.3		—
Total	$	3,656.5	$	9.0	$	3,627.2	$	20.3
Liabilities:
Derivative contracts	$	14.4	$	—	$	14.4	$	—
Contingent consideration obligations	293.9		—		—		293.9
Total	$	308.3	$	—	$	14.4	$	293.9



(In millions)	As of December 31, 2011		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	$	399.8	$	—	$	399.8	$	—
Marketable debt securities:
Corporate debt securities	602.6		—		602.6		—
Government securities	1,716.5		—		1,716.5		—
Mortgage and other asset backed securities	273.8		—		273.8		—
Marketable equity securities	0.1		0.1		—		—
Venture capital investments	23.5		—		—		23.5
Derivative contracts	39.5		—		39.5		—
Plan assets for deferred compensation	11.6		—		11.6		—
Total	$	3,067.4	$	0.1	$	3,043.8	$	23.5
Liabilities:
Derivative contracts	$	0.5	$	—	$	0.5	$	—
Contingent consideration obligations	151.0		—		—		151.0
Total	$	151.5	$	—	$	0.5	$	151.0

Fair value of venture capital investments



	As of December 31,
(In millions)	2012			2011
Fair value, beginning of year	$	23.5		$	20.8
Unrealized gains included in earnings	5.4			2.4
Unrealized losses included in earnings	(9.2		)	(1.4		)
Purchases	0.6			1.7
Fair value, end of year	$	20.3		$	23.5

Summary of fair and carrying value of debt instruments



	As of December 31,
(In millions)	2012		2011
Notes payable to Fumedica	$	20.0	$	22.4
6.0% Senior Notes due March 1, 2013	453.7		474.1
6.875% Senior Notes due March 1, 2018	681.6		663.9
Total	$	1,155.3	$	1,160.4

Fair value of contingent consideration obligations



	As of December 31,
(In millions)	2012			2011
Fair value, beginning of year	$	151.0		$	81.2
Additions	122.2			38.8
Changes in fair value	27.2			36.0
Payments	(6.5		)	(5.0		)
Fair value, end of year	$	293.9		$	151.0

- Definition

Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

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- Definition

Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, assets, and liabilities. Such certain disclosures about the financial instruments, assets, and liabilities include: (1) the fair value of the required items together with their carrying amounts (as appropriate) and (2) the methodology and assumptions used in developing such estimates of fair value.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef

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