Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details 1)

v3.3.0.814
Stock-Based Compensation (Details 1)
$ / shares in Units, $ in Millions
 9 Months Ended
Sep. 30, 2015
USD ($)
$ / shares
shares
Sep. 30, 2015
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Total unrecognized compensation cost related to unvested equity awards | $ $ 64 $ 64
Weighted average period of recognition related to unvested equity awards (in years)   3 years 1 month 6 days
Common Stock, Capital Shares Reserved for Future Issuance 14,400,000 14,400,000
Common Class A    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Outstanding options, Beginning Balance   3,207,000
Options granted   0
Options exercised   (330,000)
Options forfeited/cancelled   (2,000)
Outstanding options, Ending Balance 2,875,000 2,875,000
Exercisable options 2,418,000 2,418,000
Outstanding WAEP, Beginning of period | $ / shares   $ 23.21
WAEP exercised | $ / shares   22.09
Forfeited/Canelled, WAEP | $ / shares   32.16
Outstanding WAEP, End of period | $ / shares $ 23.33 23.33
Exercisable WAEP | $ / shares $ 23.14 $ 23.14
Weighted average remaining life, outstanding 3 years 6 months  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term 3 years 3 months 18 days  
Outstanding options, aggregate intrinsic value | $ $ 36 $ 36
Exercisable Options, Aggregate Intrinsic Value | $ $ 30 $ 30
Common Class B    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Options granted   0
Common Class C    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Outstanding options, Beginning Balance   9,833,000
Options granted   2,362,000
Options exercised   (634,000)
Options forfeited/cancelled   (5,000)
Outstanding options, Ending Balance 11,556,000 11,556,000
Exercisable options 4,922,000 4,922,000
Outstanding WAEP, Beginning of period | $ / shares   $ 26.71
WAEP granted | $ / shares   38.29
WAEP exercised | $ / shares   21.79
Forfeited/Canelled, WAEP | $ / shares   32.20
Outstanding WAEP, End of period | $ / shares $ 29.35 29.35
Exercisable WAEP | $ / shares $ 22.85 $ 22.85
Weighted average remaining life, outstanding 5 years 1 month 6 days  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term 3 years 3 months 18 days  
Outstanding options, aggregate intrinsic value | $ $ 68 $ 68
Exercisable Options, Aggregate Intrinsic Value | $ $ 57 $ 57