Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2015

Stock-Based Compensation [Abstract]

Schedule Of Stock-Based Compensation Costs

	For the three months ended
	March 31,
	2015		2014
	(in millions)
Stock-based compensation cost  –  expensed	$	6	$	4
Stock-based compensation cost – capitalized	$	5	$	5

Summary Of Stock Option Activity

		Weighted
		Average
	Number	Exercise
	of Options	Price
	(in thousands)
Outstanding at December 31, 2014	3,622	$	35.41
Granted	223		26.35
Exercised	–		–
Forfeited or expired	(2)		36.50
Outstanding at March 31, 2015	3,843		34.89
Exercisable at March 31, 2015	2,277	$	36.13

Summary Of Restricted Stock Activity

		Weighted
		Average
	Number	Grant Date
	of Shares	Fair Value
	(in thousands)
Unvested shares at December 31, 2014	2,376	$	34.00
Granted	97		26.27
Vested	(7)		35.57
Forfeited	(17)		34.02
Unvested shares at March 31, 2015	2,449	$	33.68

Summary Of Performance Unit Activity

		Weighted
		Average
	Number	Grant Date
	of Units (1)	Fair Value
	(in thousands)
Unvested units at December 31, 2014	223	$	40.44
Granted	443		35.22
Unvested units at March 31, 2015	666	$	36.97

⁽¹⁾ These amounts reflect the number of performance units granted in thousands. The actual payout of shares may range from a minimum of zero shares to a maximum of two shares contingent upon the actual performance against the Performance Measures.