XML 37 R50.htm IDEA: XBRL DOCUMENT v2.4.0.8
Stock-Based Compensation Expense (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock options $ 14 $ 15 $ 14
Restricted stock 32 28 21
Employee share repurchase program (compensatory effective 1/1/13) 3 0 0
Total stock-based compensation before income taxes 49 43 35
Tax benefit (16) (14) (13)
Total stock-based compensation, net of tax $ 33 $ 29 $ 22