Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2013

Fair Value Disclosures [Abstract]

Schedule of Net Investment Hedges, Statements of Financial Performance and Financial Position, Location [Table Text Block]

The following effects of risk-management instruments were recognized in other—net, (income) expense:

	Three Months Ended
	March 31,
	2013			2012
Fair value hedges:
Effect from hedged fixed-rate debt	$	(69.0	)	$	(65.9	)
Effect from interest rate contracts	69.0			65.9
Cash flow hedges:
Effective portion of losses on interest rate contracts reclassified from accumulated other comprehensive loss	2.2			2.2
Net (gains) losses on foreign currency exchange contracts not designated as hedging instruments	0.1			(32.8		)

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

The following tables summarize certain fair value information at March 31, 2013 and December 31, 2012 for assets and liabilities measured at fair value on a recurring basis, as well as the carrying amount and amortized cost of certain other investments:

					Fair Value Measurements Using
Description	Carrying Amount		Amortized Cost		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)	Fair Value
March 31, 2013
Cash and cash equivalents	$	3,936.6	$	3,936.6	$	3,907.2	$	29.4	$	$	3,936.6
Short-term investments:
U.S. government and agencies	$	84.2	$	84.1	$	84.2	$		$	$	84.2
Corporate debt securities	709.0		707.1				709.0			709.0
Other securities	2.6		2.6				2.6			2.6
Short-term investments	$	795.8	$	793.8
Noncurrent investments:
U.S. government and agencies	$	849.2	$	847.2	$	756.6	$	92.6	$	$	849.2
Corporate debt securities	3,350.2		3,324.6				3,350.2			3,350.2
Mortgage-backed	634.6		639.9				634.6			634.6
Asset-backed	358.2		360.8				358.2			358.2
Other securities	7.8		8.0				7.8			7.8
Marketable equity	200.5		82.8		200.5					200.5
Equity method and other investments(1)	235.7		235.7
Noncurrent investments	$	5,636.2	$	5,499.0
December 31, 2012
Cash and cash equivalents	$	4,018.8	$	4,018.8	$	3,964.4	$	54.4	$	$	4,018.8
Short-term investments:
U.S. government and agencies	$	150.2	$	150.2	$	150.2	$		$	$	150.2
Corporate debt securities	1,503.5		1,501.5				1,503.5			1,503.5
Other securities	11.8		11.8				11.8			11.8
Short-term investments	$	1,665.5	$	1,663.5
Noncurrent investments:
U.S. government and agencies	$	1,362.7	$	1,360.3	$	1,122.4	$	240.3	$	$	1,362.7
Corporate debt securities	3,351.3		3,322.9				3,351.3			3,351.3
Mortgage-backed	668.1		677.7				668.1			668.1
Asset-backed	519.0		523.5				519.0			519.0
Other securities	3.3		3.3				3.3			3.3
Marketable equity	175.8		83.0		175.8					175.8
Equity method and other investments(1)	233.1		233.1
Noncurrent investments	$	6,313.3	$	6,203.8

Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]

				Fair Value Measurements Using
Description	Carrying Amount			Quoted Prices in Active Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)	Fair Value
Long-term debt, including current portion
March 31, 2013	$	(5,459.6	)	$	$	(5,886.4	)	$	$	(5,886.4	)
December 31, 2012	(5,531.3		)		(5,996.6		)		(5,996.6		)

Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]

The table below summarizes the contractual maturities of our investments in debt securities measured at fair value as of March 31, 2013:

	Maturities by Period
	Total		Less Than 1 Year		1-5 Years		6-10 Years		More Than 10 Years
Fair value of debt securities	$	5,991.2	$	795.8	$	4,004.4	$	452.7	$	738.3

Fair Value, by Balance Sheet Grouping [Table Text Block]

				Fair Value Measurements Using
Description	Carrying Amount			Quoted Prices in Active Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)	Fair Value
March 31, 2013
Risk-management instruments
Interest rate contracts designated as hedging instruments:
Other receivables	$	16.6		$	$	16.6		$	$	16.6
Sundry	503.8				503.8				503.8
Foreign exchange contracts not designated as hedging instruments:
Other receivables	6.9				6.9				6.9
Other current liabilities	(7.9		)		(7.9		)		(7.9		)
December 31, 2012
Risk-management instruments
Interest rate contracts designated as hedging instruments:
Sundry	$	589.4		$	$	589.4		$	$	589.4
Foreign exchange contracts not designated as hedging instruments:
Other receivables	11.0				11.0				11.0
Other current liabilities	(17.5		)		(17.5		)		(17.5		)

Available-for-sale Securities [Table Text Block]

A summary of the fair value of available-for-sale securities in an unrealized gain or loss position and the amount of unrealized gains and losses (pretax) in accumulated other comprehensive loss follows:

	March 31, 2013		December 31, 2012
Unrealized gross gains	$	162.6	$	140.5
Unrealized gross losses	23.4		29.0
Fair value of securities in an unrealized gain position	4,248.2		5,246.0
Fair value of securities in an unrealized loss position	1,707.9		2,102.0

Gain (Loss) on Investments [Table Text Block]

Activity related to our investment portfolio, substantially all of which related to available-for-sale securities, was as follows:

	Three Months Ended
	March 31,
	2013		2012
Proceeds from sales	$	3,705.9	$	2,383.4
Realized gross gains on sales	10.0		13.7
Realized gross losses on sales	2.5		2.7