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Short-Term and Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2011

Notes to Financial Statements [Abstract]

Details underlying the recognition of gain on extinguishment of debt

							For the Years Ended December 31,
							2011			2010			2009
Principal balance outstanding prior to payoff							$	275		$	155		$	87
Unamortized debt issuance costs and discounts prior to payoff								(8)			(5)			(1)
Amount paid to retire								(275)			(155)			(22)
	Gain (loss) on extinguishment of debt, pre-tax						$	(8)		$	(5)		$	64

Future principal payments due on long-term debt


2012							$	300
2013								200
2014								500
2015								250
2016								-
Thereafter								4,138
	Total						$	5,388

Credit facilities and letters of credit

						As of December 31, 2011
				Expiration		Maximum			LOCs
				Date		Available			Issued
Credit Facilities
Four-year revolving credit facility				Jun-2015		$	2,000		$	219
LOC facility				Mar-2023			828			828
LOC facility				Aug-2031			419			419
LOC facility				Oct-2031			574			574
	Total					$	3,821		$	2,040

Schedule of debt

													As of December 31,
													2011			2010
Short-Term Debt
Commercial paper⁽¹⁾													$	-		$	100
Current maturities of long-term debt														300			250
Other short-term debt														-			1
		Total short-term debt											$	300		$	351

Long-Term Debt, Excluding Current Portion
Senior notes:
	5.65% notes, due 2012												$	-		$	300
	LIBOR + 175 bps loan, due 2013													200			200
	4.75% notes, due 2014													300			300
	4.75% notes, due 2014													200			200
	4.30% notes, due 2015⁽²⁾													250			250
	LIBOR + 3 bps notes, due 2017													250			250
	7.00% notes, due 2018													200			200
	8.75% notes, due 2019⁽²⁾													500			500
	6.25% notes, due 2020⁽²⁾													300			300
	4.85% notes, due 2021⁽²⁾													300			-
	6.15% notes, due 2036													500			500
	6.30% notes, due 2037													375			375
	7.00% notes, due 2040⁽²⁾													500			500
		Total senior notes												3,875			3,875

Capital securities:
	6.75%, due 2066⁽³⁾													-			275
	7.00%, due 2066													722			722
	6.05%, due 2067													491			491
		Total capital securities												1,213			1,488
Unamortized premiums (discounts)														(16)			(19)
Fair value hedge on interest rate swap agreements														319			55
		Total unamortized premiums (discounts) and fair value hedge on interest rate swap agreements												303			36
			Total long-term debt										$	5,391		$	5,399