v3.26.1
Equity Awards - Narrative (Detail)
$ / shares in Units, shares in Thousands, $ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2026
USD ($)
plan
$ / shares
shares
Mar. 31, 2025
USD ($)
Dec. 31, 2021
USD ($)
tranche
Dec. 31, 2025
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of equity incentive plans | plan 3      
Increased in authorized shares (in shares) | shares 50,000      
Fair value of stock options vested $ 9      
Weighted average grant date fair value (in dollars per share) | $ / shares $ 92.12      
Total unrecognized compensation cost, adjusted for estimated forfeitures, related to unvested stock options $ 67      
Common stock options, RSUs and ESPP obligations        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Remaining weighted-average period (in years) 2 years      
Restricted stock units with service condition only        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares outstanding (in shares) | shares 41,500      
Restricted stock units with service and performance conditions        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares outstanding (in shares) | shares 2,800      
RSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Remaining weighted-average period (in years) 3 years      
Number of shares outstanding (in shares) | shares 44,270     26,011
Aggregate intrinsic value, vested $ 400      
Aggregate intrinsic value, outstanding 4,600      
Aggregated intrinsic value, expected to vest 4,100      
Unrecognized compensation expense expected to be recognized $ 4,800      
Performance-based RSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares eligible to vest (percent) 100.00%      
Stock-based compensation expense, net of actual and estimated forfeitures $ 45 $ 43    
Performance-based RSUs | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares eligible to vest (percent) 0.00%      
Performance-based RSUs | Minimum | Vesting, tranche one        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting term 1 year      
Performance-based RSUs | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares eligible to vest (percent) 250.00%      
Performance-based RSUs | Maximum | Vesting, tranche one        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting term 3 years      
2012 Employee Stock Purchase Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock purchase price percentage 85.00%      
Award offering period 6 months      
2021 Performance Awards        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Service period (in years) 2 years      
2021 Performance Awards | Employee Stock | Chief Executive Officer        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares granted, value, share-based payment arrangement, before forfeiture     $ 232  
Number of vesting tranches | tranche     8  
Options granted, exercisable period 10 years      
2021 Performance Awards | Employee Stock | Minimum | Chief Executive Officer        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Description of service or performance condition required to be met for earning right to award under share-based payment arrangement. Includes, but is not limited to, combination of market, performance or service condition     2 years