Annual report pursuant to Section 13 and 15(d)

Benefit Plans - Stock Options Activity Under Share-Based Payment Plans (Details)

v3.22.0.1
Benefit Plans - Stock Options Activity Under Share-Based Payment Plans (Details) - Employees and Non Employee Stock Option - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Options      
Outstanding as of beginning of period (in shares) 184 208 243
Awards granted in connection with acquisition (in shares)     7
Granted (in shares) 54 11 15
Exercised (in shares) (72) (33) (53)
Forfeited, cancelled or expired (in shares) (5) (2) (4)
Outstanding as of end of period (in shares) 161 184 208
Exercisable (in shares) 101    
Weighted-Average Exercise Price Per Share      
Outstanding as of beginning of period ( in USD per share) $ 4.73 $ 4.46 $ 4.22
Awards granted in connection with acquisition (in USD per share)     3.85
Granted ( in USD per share) 6.14 6.87 6.10
Exercised ( in USD per share) 3.98 3.66 3.65
Forfeited, cancelled or expired ( in USD per share) 6.73 6.28 5.58
Outstanding as of end of period ( in USD per share) 5.47 $ 4.73 $ 4.46
Exercisable ( in USD per share) $ 5.01    
Weighted-Average Remaining Contractual Term (Years)      
Outstanding 5 years 8 months 26 days    
Exercisable 4 years 11 months 1 day    
Aggregate Intrinsic Value      
Outstanding $ 156    
Exercisable $ 144