Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2012

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						Nine Months Ended
	September 30,						September 30,
	2012			2011			2012			2011
	(Dollars in millions)
Fair value hedges
Effect from hedged fixed-rate debt	$	12.1		$	245.4		$	43.8		$	255.7
Effect from interest rate contracts	(12.1		)	(245.4		)	(43.8		)	(255.7		)
Cash flow hedges
Effective portion of losses on interest rate contracts reclassified from accumulated other comprehensive loss	2.3			2.3			6.7			6.7
Net gains on foreign currency exchange contracts not designated as hedging instruments	(23.7		)	(51.7		)	(38.5		)	(1.0		)

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

The following tables summarize certain fair value information at September 30, 2012 and December 31, 2011 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
	(Dollars in millions)
September 30, 2012
Cash and cash equivalents	$	5,319.2	$	5,319.2	$	5,235.3	$	83.9	$	$	5,319.2
Short-term investments
U.S. government and agencies	$	61.0	$	61.0	$	61.0	$		$	$	61.0
Corporate debt securities	1,509.1		1,507.1				1,509.1			1,509.1
Other securities	10.6		10.6				10.6			10.6
Short-term investments	$	1,580.7	$	1,578.7
Noncurrent investments
U.S. government and agencies	$	1,124.1	$	1,121.1	$	885.7	$	238.4	$	$	1,124.1
Corporate debt securities	2,623.8		2,593.2				2,623.8			2,623.8
Mortgage-backed	401.6		405.3				401.6			401.6
Asset-backed	676.1		692.5				676.1			676.1
Other securities	3.3		3.3				3.3			3.3
Marketable equity	183.4		83.0		183.4					183.4
Equity method and other investments(1)	212.0		212.0
Noncurrent investments	$	5,224.3	$	5,110.4
December 31, 2011
Cash and cash equivalents	$	5,922.5	$	5,922.5	$	5,264.6	$	657.9	$	$	5,922.5
Short-term investments
U.S. government and agencies	$	362.3	$	362.3	$	351.3	$	11.0	$	$	362.3
Corporate debt securities	600.7		601.1				600.7			600.7
Other securities	11.6		11.6				11.6			11.6
Short-term investments	$	974.6	$	975.0
Noncurrent investments
U.S. government and agencies	$	908.8	$	901.3	$	673.5	$	235.3	$	$	908.8
Corporate debt securities	2,081.3		2,093.3				2,081.3			2,081.3
Mortgage-backed	443.8		479.1				443.8			443.8
Asset-backed	245.0		253.2				245.0			245.0
Other securities	10.0		11.9				8.7		1.3	10.0
Marketable equity	180.8		107.5		180.8					180.8
Equity method and other investments(1)	160.1		160.1
Noncurrent investments	$	4,029.8	$	4,006.4

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
	(Dollars in millions)
Long-term debt, including current portion
September 30, 2012	$	(5,520.0	)	$	$	(6,072.2	)	$	$	(6,072.2	)
December 31, 2011	$	(6,981.5	)	$	$	(7,451.5	)	$	$	(7,451.5	)

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
	(Dollars in millions)
September 30, 2012
Risk-management instruments
Interest rate contracts designated as hedging instruments
Sundry	$	581.7		$	$	581.7		$	$	581.7
Foreign exchange contracts not designated as hedging instruments
Other receivables	7.0				7.0				7.0
Other current liabilities	(18.4		)		(18.4		)		(18.4		)
December 31, 2011
Risk-management instruments
Interest rate contracts designated as hedging instruments
Other receivables	$	6.1		$	$	6.1		$	$	6.1
Sundry	531.7				531.7				531.7
Foreign exchange contracts not designated as hedging instruments
Other receivables	16.2				16.2				16.2
Other current liabilities	(25.9		)		(25.9		)		(25.9		)

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:

	September 30, 2012		December 31, 2011
	(Dollars in millions)
Unrealized gross gains	$	150.6	$	103.0
Unrealized gross losses	34.7		80.0
Fair value of securities in an unrealized gain position	5,050.6		2,498.9
Fair value of securities in an unrealized loss position	942.3		2,164.4

Gain (Loss) on Investments [Table Text Block]

Activity related to our available-for-sale investment portfolio was as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2012		2011		2012		2011
	(Dollars in millions)
Proceeds from sales	$	1,698.8	$	775.7	$	5,334.1	$	1,274.2
Realized gross gains on sales	43.1		25.6		70.0		113.6
Realized gross losses on sales	2.2		2.5		7.4		7.6