Commercial Paper and Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2011

Debt Disclosure [Abstract]

Commercial Paper and Long-Term Debt

	December 31, 2011						December 31, 2010
(in millions)	Par Value		Carrying Value		Fair Value		Par Value		Carrying Value		Fair Value
Commercial paper	$	—	$	—	$	—	$	930	$	930	$	930
Senior unsecured floating-rate notes due February 2011	—		—		—		250		250		250
5.3% senior unsecured notes due March 2011	—		—		—		705		712		711
5.5% senior unsecured notes due November 2012	352		363		366		352		372		377
4.9% senior unsecured notes due February 2013	534		540		556		534		541		568
4.9% senior unsecured notes due April 2013	409		421		427		409		425		437
4.8% senior unsecured notes due February 2014	172		184		185		172		186		184
5.0% senior unsecured notes due August 2014	389		423		424		389		425		423
4.9% senior unsecured notes due March 2015	416		458		460		416		456		444
5.4% senior unsecured notes due March 2016	601		678		689		601		666		661
1.9% senior unsecured notes due November 2016	400		397		400		—		—		—
5.4% senior unsecured notes due November 2016	95		95		110		95		95		105
6.0% senior unsecured notes due June 2017	441		499		518		441		484		491
6.0% senior unsecured notes due November 2017	156		173		183		156		167		174
6.0% senior unsecured notes due February 2018	1,100		1,123		1,308		1,100		1,065		1,249
3.9% senior unsecured notes due October 2020	450		442		478		450		413		429
4.7% senior unsecured notes due February 2021	400		419		450		—		—		—
3.4% senior unsecured notes due November 2021	500		497		517		—		—		—
Zero coupon senior unsecured notes due November 2022	1,095		619		696		1,095		588		677
5.8% senior unsecured notes due March 2036	850		844		1,017		850		844		862
6.5% senior unsecured notes due June 2037	500		495		636		500		495		552
6.6% senior unsecured notes due November 2037	650		645		834		650		645		729
6.9% senior unsecured notes due February 2038	1,100		1,084		1,475		1,100		1,085		1,281
5.7% senior unsecured notes due October 2040	300		298		359		300		298		299
6.0% senior unsecured notes due February 2041	350		348		430		—		—		—
4.6% senior unsecured notes due November 2041	600		593		631		—		—		—
Total commercial paper and long-term debt	$	11,860	$	11,638	$	13,149	$	11,495	$	11,142	$	11,833

Schedule of Maturities of Long-term Debt [Table Text Block]

Maturities of long-term debt for the years ending December 31 are as follows:

(in millions)	Maturities of Long-Term Debt
2012 (a)	$	982
2013	961
2014	607
2015	458
2016	1,170
Thereafter	7,460

(a) The $1,095 million par, zero coupon senior unsecured notes due November 2022 have been included in current maturities of long-term debt in the Consolidated Balance Sheets as of December 31, 2011 and 2010 due to a current note holder option to “put” the note to the Company which began on November 15, 2010, and recurs each November 15 thereafter until 2022 (except 2014), at accreted value.

Summary of Effect of Changes in Fair Value of Fair Value Hedges

The following table provides a summary of the effect of changes in fair value of fair value hedges, prior to their termination, on the Company’s Consolidated Statements of Operations:

	December 31,
(in millions)	2011			2010
Hedge gain recognized in interest expense	$	190		$	(58	)
Hedged item loss recognized in interest expense	(190		)	58
Net impact on the Company’s Consolidated Statements of Operations	$	—		$	—