XML 31 R71.htm IDEA: XBRL DOCUMENT v2.4.0.8
Stock-Based Compensation (Narrative) (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Sep. 30, 2014
Sep. 30, 2014
Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value $ 12.06 $ 12.01  
Excess Tax Benefit from Share-based Compensation, Financing Activities $ 2 $ 14 $ 0
Minimum
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage range of shares received at vesting based on total stockholder return ("TSR") 0.00% 0.00%  
Maximum
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage range of shares received at vesting based on total stockholder return ("TSR") 200.00% 200.00%  
Market-Based Restricted Stock Units [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost related to stock options 17 17  
Weighted-average grant date fair values of restricted stock rights granted   $ 46.96  
Maximum number of common shares to be earned during the performance period, Grants   0.4  
Maximum number of common shares to be earned during the performance period, outstanding 1.3 1.3  
Market-Based Restricted Stock Units [Member] | Target
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of target of presented shares granted that may potentially vest 100.00% 100.00%  
Employee Stock Option [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost related to stock options 21 21  
Weighted-average service period   2 years 9 months  
Restricted Stock Rights [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost related to stock options 283 283  
Weighted-average service period   1 year 8 months  
Weighted-average grant date fair values of restricted stock rights granted $ 36.79 $ 35.70  
Fiscal Year 2014 Repurchase Program [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Amount of common stock authorized for repurchase 750 750  
Stock Repurchased and Retired During Period, Shares 2.6 4.0  
Repurchase and retirement of common stock $ 95 $ 145