Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2013

Share-based Compensation [Abstract]

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

The following table summarizes the components of stock-based compensation:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2013		2012		2013		2012
	(In millions)
Stock-based compensation expense	$	35	$	23	$	63	$	40
Tax benefit	14		9		25		15
Stock-based compensation cost capitalized in property, plant and equipment	2		1		4		2

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

The following table summarizes our stock option activity for the six months ended June 30, 2013:

	Number of Options		Weighted Average Exercise Price		Aggregate Intrinsic Value (In millions)
Options outstanding at December 31, 2012	1,192,670		$	41.86
Exercised	(370,959	)	$	40.53
Forfeited or expired	(10,370	)	$	41.46
Options outstanding at June 30, 2013	811,341		$	42.48	$	22
Options exercisable at June 30, 2013	811,341		$	42.48	$	22

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

The following table summarizes the Company’s restricted stock awards activity for the six months ended June 30, 2013:

	Restricted Stock		Weighted Average Grant Date Fair Value
Balance at December 31, 2012	597,648		$	48.33
Grants	118,610		$	64.52
Forfeitures	(2,996	)	$	51.33
Vested and issued	(212,191	)	$	50.21
Balance at June 30, 2013	501,071		$	68.35

Summary of Performance Share Activity [Table Text Block]

The following table summarizes the Company’s performance share activity for the six months ended June 30, 2013:

	Performance Shares
Balance at December 31, 2012	1,634,364
Grants	534,027
Forfeitures	(22,906	)
Payouts	(548,624	)
Balance at June 30, 2013	1,596,861