Debt and Financing Costs (Tables)

6 Months Ended

Jun. 30, 2012

Debt and Financing Costs [Abstract]

Non-recurring fair value measurement

	June 30, 2012				December 31, 2011
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(In millions)
Money market lines of credit	$	68	$	68	$	31	$	31
Commercial paper		393		393		—		—
Notes and debentures		9,777		11,441		7,185		8,673
Total Debt	$	10,238	$	11,902	$	7,216	$	8,704

Financing Costs, Net

	For the Quarter  Ended June 30,						For the Six Months  Ended June 30,
	2012			2011			2012			2011
	(In millions)
Interest expense	$	131		$	109		$	239		$	217
Amortization of deferred loan costs		2			1			3			3
Capitalized interest		(85	)		(63	)		(151	)		(124	)
Interest income		(3	)		(6	)		(6	)		(10	)
Financing costs, net	$	45		$	41		$	85		$	86