Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2014

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule Of Stock-Based Compensation Expense

	Three Months Ended March 31,
(in millions)			2014		2013
Stock options		$	―	$	2
Restricted stock unit awards		$	11	$	13
Performance awards			5		11
Total		$	16	$	26
Tax benefit associated with stock-based compensation expense		$	6	$	10
Stock-based compensation costs capitalized			1		1