Annual report pursuant to Section 13 and 15(d)

Stock-based Compensation Plans - Restricted Stock Units (Details)

v3.3.1.900
Stock-based Compensation Plans - Restricted Stock Units (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Weighted- average Grant Date Fair Value      
Cash used to settle awards $ 3,000 $ 2,700 $ 1,700
Stock-settled Restricted Stock and Restricted Stock Units      
Shares/Units      
Outstanding at beginning of period (in shares) 29,882,769    
Granted (in shares) 2,079,667    
Vested (in shares) (8,750,921)    
Canceled (in shares) (655,497)    
Outstanding at end of period (in shares) 22,556,018 29,882,769  
Weighted- average Grant Date Fair Value      
Outstanding at beginning of period (in dollars per share) $ 9.30    
Granted (in dollars per share) 16.60    
Vested (in dollars per share) 11.43    
Canceled (in dollars per share) 9.52    
Outstanding at end of period (in dollars per share) $ 9.14 $ 9.30  
Restricted Stock and Restricted Stock Units      
Weighted- average Grant Date Fair Value      
Total unrecognized compensation cost $ 1,200    
Expected period of total unrecognized compensation cost 4 years    
Total unrecognized compensation cost, period for recognition 1 year 8 months    
Fair value of vested in period $ 145 $ 704 $ 906
Key Associate Stock Plan | Stock-settled Restricted Stock and Restricted Stock Units      
Shares/Units      
Granted (in shares) 2,000,000    
Key Associate Stock Plan | Cash-settled Restricted Stock Units      
Shares/Units      
Outstanding at beginning of period (in shares) 316,956,435    
Granted (in shares) 128,748,571    
Vested (in shares) (176,407,854)    
Canceled (in shares) (13,942,138)    
Outstanding at end of period (in shares) 255,355,014 316,956,435