Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2011

Stock-Based Compensation [Abstract]

Stock-based Compensation Expense

We recognized stock-based compensation expense as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2011			2010			2011			2010
(millions)
Stock-Based Compensation Expense	$	15		$	13		$	43		$	40
Tax Benefit Recognized		(5	)		(5	)		(15	)		(14	)

Share-based Compensation Awards

During the nine months ended September 30, 2011, we granted stock options and awarded shares of restricted stock (subject to service conditions) as follows:

	Number Granted/Awarded		Weighted Average Fair Value
Stock Options		985,503	$	30.18
Shares of Restricted Stock		403,097	$	90.34