Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2017

Stock-Based Compensation [Abstract]

Schedule Of Stock-Based Compensation Costs

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2017		2016		2017		2016
	(in millions)
Stock-based compensation cost – expensed (1)	$	7	$	6	$	19	$	43
Stock-based compensation cost – capitalized	$	2	$	2	$	10	$	7

(1) Includes $16 million and $3 million related to the reduction in workforce and executive management restructuring, respectively, for the nine months ended September 30, 2016.

Summary Of Stock Option Activity

	Number		Weighted Average
	of Options		Exercise Price
	(in thousands)		(per share)
Outstanding at December 31, 2016		5,416	$	23.46
Granted		1,604		8.00
Exercised		–		–
Forfeited or expired		(725)		17.92
Outstanding at September 30, 2017		6,295		20.16
Exercisable at September 30, 2017		3,336	$	29.37

Summary Of Restricted Stock Activity

	Number			Weighted Average
	of Shares			Fair Value
	(in thousands)			(per share)
Unvested shares at December 31, 2016		3,321	$		11.85
Granted		5,036			8.39
Vested		(247)			9.40
Forfeited		(609)			10.16
Unvested shares at September 30, 2017		7,501	$		9.68

Summary Of Performance Unit Activity

	Number		Weighted Average
	of Units (1)		Fair Value
	(in thousands)		(per share)
Unvested units at December 31, 2016		719	$	11.46
Granted		1,197		10.47
Vested		(42)		5.94
Forfeited		(472)		9.74
Unvested units at September 30, 2017		1,402	$	10.78

(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 per unit contingent upon the actual performance against the Performance Measures.  The performance units have a three-year vesting term and the actual disbursement of shares, if any, is determined during the first quarter following the end of the three-year vesting period.