Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Unvested Restricted Stock Units Roll Forward [Table Text Block]

A summary of the changes in unvested shares of restricted stock during the Current Period is presented below.

	Number of Unvested Restricted Shares		Weighted Average Grant Date Fair Value
	(in thousands)
Unvested shares as of January 1, 2014	13,400		$	23.38
Granted	4,882		$	26.09
Vested	(4,557	)	$	27.58
Forfeited	(3,279	)	$	28.72
Unvested shares as of September 30, 2014	10,446		$	21.14

Equity-Classified Share-Based Payment Award Valuation Assumptions [Table Text Block]

For the 2014 awards, the Company utilized the Monte Carlo simulation for the TSR performance measure, and used the following assumptions to determine the grant date fair value of the PSUs granted in the Current Period:

Volatility	41.37	%
Risk-free interest rate	0.76	%
Dividend yield for value of awards	1.36	%

The Company used the following weighted average assumptions to estimate the grant date fair value of the stock options granted in the Current Period:

Expected option life - years	5.9
Volatility	48.63	%
Risk-free interest rate	1.93	%
Dividend yield	1.33	%

Schedule of Share-Based Compensation, Stock Options, Activity [Table Text Block]

The following table provides information related to stock option activity during the Current Period: 

	Number of Shares Underlying   Options		Weighted Average Exercise Price Per Share		Weighted   Average Contract Life in Years	Aggregate   Intrinsic Value(a)
	(in thousands)					($ in millions)
Outstanding at January 1, 2014	5,268		$	19.28	6.66	$	41
Granted	994		$	24.43
Exercised	(1,309	)	$	18.75		$	11
Expired	(28	)	$	18.97
Forfeited	(313	)	$	21.05
Outstanding at September 30, 2014	4,612		$	19.53	7.63	$	17
Exercisable at September 30, 2014	1,133		$	18.71	6.78	$	5

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(a) The intrinsic value of a stock option is the amount by which the current market value or the market value upon exercise of the underlying stock exceeds the exercise price of the option.

Equity-Classified Stock-Based Compensation [Table Text Block]

We recognized the following compensation costs related to PSUs during the Current Quarter, the Prior Quarter, the Current Period and the Prior Period:

	Three Months Ended September 30,					Nine Months Ended September 30,
	2014			2013		2014			2013
	($ in millions)
General and administrative expenses	$	(12	)	$	18	$	(2	)	$	28
Natural gas and oil properties	—			4		3			8
Natural gas, oil and NGL production expenses	—			1		—			2
Marketing, gathering and compression expenses	(1		)	2		—			3
Total	$	(13	)	$	25	$	1		$	41

We recognized the following compensation costs related to restricted stock and stock options during the Current Quarter, the Prior Quarter, the Current Period and the Prior Period:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2014		2013		2014		2013
	($ in millions)
General and administrative expenses	$	12	$	13	$	36	$	48
Natural gas and oil properties	6		12		22		45
Natural gas, oil and NGL production expenses	5		5		13		17
Marketing, gathering and compression expenses	2		2		5		5
Oilfield services expenses	—		3		5		8
Total	$	25	$	35	$	81	$	123

Liability-Classified Share-Based Payment Award Valuation Assumptions [Table Text Block]

For the 2014 awards, the Company utilized the Monte Carlo simulation for the TSR performance measure, and used the following assumptions to determine the grant date fair value of the PSUs granted in the Current Period:

Volatility	41.37	%
Risk-free interest rate	0.76	%
Dividend yield for value of awards	1.36	%

The Company used the following weighted average assumptions to estimate the grant date fair value of the stock options granted in the Current Period:

Expected option life - years	5.9
Volatility	48.63	%
Risk-free interest rate	1.93	%
Dividend yield	1.33	%

Schedule of Nonvested Performance-based Units Activity [Table Text Block]

The following table presents a summary of our PSU awards as of September 30, 2014:

	Units	Fair Value as of Grant Date		Fair Value		Liability for Vested Amount
		($ in millions)
2012 Awards (a)
Payable 2015	884,507	$	23	$	21	$	21
2013 Awards
Payable 2016	1,701,941	$	35	$	45	$	42
2014 Awards
Payable 2017	609,637	$	16	$	10	$	6

___________________________________________

(a) In the Current Period and the Prior Period, we paid $11 million and $2 million, respectively, related to 2012 PSU awards.

Liability-Classified Stock-Based Compensation [Table Text Block]

We recognized the following compensation costs related to PSUs during the Current Quarter, the Prior Quarter, the Current Period and the Prior Period:

	Three Months Ended September 30,					Nine Months Ended September 30,
	2014			2013		2014			2013
	($ in millions)
General and administrative expenses	$	(12	)	$	18	$	(2	)	$	28
Natural gas and oil properties	—			4		3			8
Natural gas, oil and NGL production expenses	—			1		—			2
Marketing, gathering and compression expenses	(1		)	2		—			3
Total	$	(13	)	$	25	$	1		$	41

We recognized the following compensation costs related to restricted stock and stock options during the Current Quarter, the Prior Quarter, the Current Period and the Prior Period:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2014		2013		2014		2013
	($ in millions)
General and administrative expenses	$	12	$	13	$	36	$	48
Natural gas and oil properties	6		12		22		45
Natural gas, oil and NGL production expenses	5		5		13		17
Marketing, gathering and compression expenses	2		2		5		5
Oilfield services expenses	—		3		5		8
Total	$	25	$	35	$	81	$	123