v3.22.4
Stock Incentive Plans - Stock Option Activity (Details) - Cruise Stock Incentive Awards - $ / shares
shares in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Restricted Stock Units (RSUs)    
Shares    
Units outstanding, Beginning balance (in shares) 66.2  
Granted (in shares) 47.4  
Settled (in shares) (45.2)  
Forfeited or expired (in shares) (7.2)  
Units outstanding, Ending balance (in shares) 61.2 66.2
Weighted-Average Grant Date Fair Value    
Weighted average grant date fair value, Beginning balance (in dollars per share) $ 18.82  
Weighted average grant fate fair value, Granted (in dollars per share) 28.09  
Weighted average grant date fair value, Settled (in dollars per share) 29.00  
Weighted average grant date fair value, Forfeited or expired (in dollars per share) 26.86  
Weighted average grant date fair value, Ending balance (in dollars per share) $ 28.62 $ 18.82
Weighted-Average Remaining Contractual Term in Years 1 year 6 months 8 years 1 month 6 days
Stock options    
Shares    
Beginning balance, Units outstanding (in shares) 23.8  
Granted (in shares) 2.9  
Settled (in shares) (2.3)  
Forfeited or expired (in shares) 0.0  
Ending balance, Units outstanding (in shares) 24.4 23.8
Weighted-Average Grant Date Fair Value    
Weighted average exercise price, Beginning balance (in dollars per share) $ 7.07  
Weighted average exercise price, Granted (in dollars per share) 15.77  
Weighted average exercise price, Settled (in dollars per share) 20.64  
Weighted average exercise price, Forfeited or expired (in dollars per share) 0  
Weighted average exercise price, Ending balance (in dollars per share) $ 8.22 $ 7.07
Weighted-Average Remaining Contractual Term in Years 1 year 8 months 12 days 2 years