Annual report pursuant to Section 13 and 15(d)

SHARE-BASED COMPENSATION - Schedule of Stock Option Activity (Details)

v3.20.4
SHARE-BASED COMPENSATION - Schedule of Stock Option Activity (Details)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2020
USD ($)
$ / shares
shares
Options (in shares):  
Outstanding at beginning of period (in shares) 11,309
Granted (in shares) 4,378
Exercised (in shares) (1,372)
Forfeited/expired (in shares) (163)
Outstanding at end of period (in shares) 14,152
Expected to vest at end of period (in shares) 7,994
Exercisable at end of period (in shares) 5,919
Weighted- Average Exercise Price (USD per share):  
Outstanding at beginning of period (USD per share) | $ / shares $ 12.23
Granted (USD per share) | $ / shares 8.60
Exercised (USD per share) | $ / shares 7.56
Forfeited/expired (USD per share) | $ / shares 13.25
Outstanding at end of period (USD per share) | $ / shares 11.55
Vested and expected to vest (USD per share) | $ / shares 11.18
Exercisable (USD per share) | $ / shares $ 12.09
Weighted-Average Remaining Contractual Life (Years)/Aggregate Intrinsic Value  
Outstanding, weighted-average remaining contractual life (years) 7 years 4 months 24 days
Expected to vest, weighted-average remaining contractual period (years) 8 years 7 months 6 days
Exercisable, weighted-average remaining contractual term (years) 5 years 7 months 6 days
Outstanding aggregate intrinsic value | $ $ 25
Expected to vest, aggregate intrinsic value | $ 17
Exercisable, aggregate intrinsic value | $ $ 7
Expected to be forfeited (in shares) 239