v2.4.0.8
Incentive Stock Programs (Details) (USD $)
In Millions, except Share data, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award  
Incentive stock programs, shares reserved for future grants 110,000,000
Total unrecognized compensation cost $ 222
Stock options
 
Share-based Compensation Arrangement by Share-based Payment Award  
Grants in period, stock options (in shares) 3,721,084
Stock options outstanding, number of shares 40,505,063
Exercisable options, number of shares 33,055,510
Stock options outstanding, weighted-average remaining life 4 years 3 months 18 days
Exercisable options, weighted-average remaining life 3 years 3 months 18 days
Stock options outstanding, weighted-average exercise price (in dollars per share) $ 27.38
Exercisable options, weighted-average exercise price (in dollars per share) $ 25.36
Aggregate intrinsic value of options outstanding 551
Aggregate intrinsic value of options exercisable $ 517
Total unrecognized compensation cost, recognition period 3 years
Restricted stock awards
 
Share-based Compensation Arrangement by Share-based Payment Award  
Grants in period, restricted stock (in shares) 546,800
Restricted stock units
 
Share-based Compensation Arrangement by Share-based Payment Award  
Grants in period, restricted stock (in shares) 5,318,607