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Equity Awards - Narrative (Detail) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2022 USD ($) shares | Dec. 31, 2022 USD ($) tranche $ / shares shares | Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of equity incentive plans | tranche |  | 3 |  |
Total intrinsic value of options exercised |  | $ 40,000,000 | $ 140,000,000 | $ 199,000,000
Fair value of stock options vested |  | $ 11,000,000 | $ 10,000,000 | 7,000,000
Weighted-average grant date fair value of options granted (in USD per share) | $ / shares |  | $ 273.63 | $ 248.85 |
Total unrecognized compensation cost, adjusted for estimated forfeitures, related to unvested stock options | $ 84,000,000 | $ 84,000,000 |  |
Dividend yield (in percent) |  | 0.00% |  |
Common stock options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Weighted-average remaining vesting period |  | 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 | 5,300,000 | 5,300,000 |  |
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 | 400,000 | 400,000 |  |
RSUs |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Weighted-average remaining vesting period |  | 3 years |  |
Number of shares outstanding (in shares) | shares | 5,737,000 | 5,737,000 | 5,808,000 |
Aggregate intrinsic value, vested |  | $ 1,500,000,000 | $ 2,100,000,000 | $ 1,800,000,000
Aggregate intrinsic value, outstanding | $ 2,200,000,000 | 2,200,000,000 |  |
Aggregated intrinsic value, expected to vest | 1,900,000,000 | $ 1,900,000,000 |  |
Weighted-average grant date fair value, granted (in USD per share) | $ / shares |  | $ 541.24 | $ 577.26 | $ 367.52
Unrecognized compensation expense expected to be recognized | $ 2,200,000,000 | $ 2,200,000,000 |  |
Performance shares |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Performance target (in percent) |  | 100.00% |  |
Vesting period (in years) |  | 2 years |  |
Allocated share-based compensation expense |  | $ 121,000,000 | $ 124,000,000 | $ 70,000,000
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 |  |
Number of shares of common stock outstanding, increase, percentage |  | 1.00% |  |
2005 Stock Plan and 2012 Plan |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock options granted to new employees vest, percentage per annum |  | 25.00% |  |
Requisite service period to vest employment continuation period |  | 3 years |  |
2021 Performance Awards |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Service period (in years) |  | 2 years |  |
2021 Performance Awards | Common stock options | Chief Executive Officer | Tranche one |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award vesting percentage | 12.50% |  |  |
2021 Performance Awards | Common stock options | Chief Executive Officer | Tranche two |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award vesting percentage | 12.50% |  |  |
2021 Performance Awards | Common stock options | Chief Executive Officer | Tranche three |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award vesting percentage | 12.50% |  |  |
2021 Performance Awards | Common stock options | Chief Executive Officer | Tranche four |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award vesting percentage | 12.50% |  |  |
2021 Performance Awards | Common stock options | Chief Executive Officer | Tranche five |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award vesting percentage | 12.50% |  |  |
2021 Performance Awards | Common stock options | Chief Executive Officer | Tranche six |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award vesting percentage | 12.50% |  |  |
2021 Performance Awards | Common stock options | Chief Executive Officer | Tranche seven |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award vesting percentage | 12.50% |  |  |
2021 Performance Awards | Common stock options | Chief Executive Officer | Tranche eight |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award vesting percentage | 12.50% |  |  |
2021 Performance Awards | ESPP obligations | Chief Executive Officer |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares granted, value, share-based payment arrangement, before forfeiture |  |  | $ 232,000,000 |
Number of vesting tranches |  |  | 8 |
2021 Performance Awards | Minimum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Performance target (in percent) |  | 0.00% | 0.00% |
2021 Performance Awards | Minimum | ESPP obligations | 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 |
2021 Performance Awards | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Performance target (in percent) |  | 200.00% | 200.00% |

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