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Employee Benefit Plans and Stockholders' Equity - Narrative (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  |  |  |  |
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Oct. 31, 2023 | Aug. 31, 2022 | Sep. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Jul. 31, 2024 | Jun. 30, 2023 | Aug. 01, 2022 | Jul. 31, 2022 | Dec. 31, 2021 | May 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum payroll deductions (as a percent) |  |  |  |  |  | 10.00% |  |  |  |  |  |  |  |
Employee purchase price floor (as a percent) |  |  |  |  |  | 85.00% |  |  |  |  |  |  |  |
Stock authorized in ESPP (in shares) |  |  |  |  |  | 6,000,000.0 |  |  |  |  |  |  |  |
Purchases of treasury stock |  |  |  |  |  | $ 750,000,000.0 | $ 688,700,000 | $ 557,700,000 |  |  |  |  |  |
Exercise and settlement of warrants (in shares) |  |  |  |  |  | 12,500,000 | 0 | 0 |  |  |  |  |  |
Shares issued in connection with the Restated Collaboration Agreement (in shares) |  |  |  |  |  | 1,500,000 | 3,700,000 | 2,900,000 |  |  |  |  |  |
Potential common stock issued shares (in shares) |  |  |  | 1,500,000 |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement, Milestone Payments | Verily Life Sciences | Collaborative Arrangement |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued in connection with the Restated Collaboration Agreement (in shares) |  |  |  | 1,500,000 |  |  |  |  |  |  |  |  |  |
Potential common stock issued shares (in shares) |  |  |  |  | 3,700,000 |  |  |  |  |  |  |  |  |
Accelerated Share Repurchase (ASR) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchases of treasury stock (in shares) | 4,700,000 | 6,600,000 |  |  |  |  |  |  |  |  |  |  |  |
Purchases of treasury stock | $ 500,000,000.0 | $ 557,700,000 |  |  |  |  |  |  |  |  |  |  |  |
Accelerated share repurchase agreement, authorized amount | $ 500,000,000.0 |  |  |  |  |  |  |  |  |  | $ 700,000,000 |  |  |
Share Repurchase Program |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  |  |  |  |  | $ 142,300,000 |  | $ 700,000,000 |  |
Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock for employee stock purchase plan (in shares) |  |  |  |  |  | 400,000 | 300,000 | 300,000 |  |  |  |  |  |
Purchases of treasury stock (in shares) |  |  |  |  |  | 10,400,000 | 6,300,000 | 6,600,000 |  |  |  |  |  |
Exercise and settlement of warrants (in shares) |  |  |  |  |  | 12,500,000 |  |  |  |  |  |  |  |
Shares issued in connection with the Restated Collaboration Agreement (in shares) |  |  |  |  |  | 1,500,000 | 3,700,000 | 2,900,000 |  |  |  |  |  |
RSUs and PSUs |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of vested awards |  |  |  |  |  | $ 174,500,000 | $ 157,800,000 | $ 160,100,000 |  |  |  |  |  |
Restricted Stock Units (RSUs) | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting period (in years) |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |
Restricted Stock Units (RSUs) | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting period (in years) |  |  |  |  |  | 4 years |  |  |  |  |  |  |  |
PSUs |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting period (in years) |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |
PSUs | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common received vesting percentage |  |  |  |  |  | 0.00% |  |  |  |  |  |  |  |
PSUs | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common received vesting percentage |  |  |  |  |  | 200.00% |  |  |  |  |  |  |  |
401(k) Plan |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum employee contribution (as a percent) |  |  |  |  |  | 90.00% |  |  |  |  |  |  |  |
Employer matching contribution (as a percent) |  |  |  |  |  | 50.00% |  |  |  |  |  |  |  |
Employee contribution (as a percent) |  |  |  |  |  | 6.00% |  |  |  |  |  |  |  |
Total matching contributions |  |  |  |  |  | $ 17,600,000 | $ 14,900,000 | $ 11,100,000 |  |  |  |  |  |
ESPP 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock for employee stock purchase plan (in shares) |  |  |  |  |  | 400,000 | 300,000 | 300,000 |  |  |  |  |  |
Stock available for issuance for future awards (in shares) |  |  |  |  |  | 2,100,000 |  |  |  |  |  |  |  |
EIP 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock available for issuance for future awards (in shares) |  |  |  |  | 13,900,000 | 12,500,000 | 13,900,000 | 15,300,000 |  |  |  |  | 16,800,000 |
Stock reserved for issuance (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | 39,200,000
EIP 2015 | RSUs and PSUs |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock available for issuance for future awards (in shares) |  |  |  |  |  | 12,500,000 |  |  |  |  |  |  |  |
Unvested awards (in shares) |  |  |  |  | 2,900,000 | 3,000,000.0 | 2,900,000 | 2,900,000 |  |  |  |  | 3,000,000.0 |
Unrecognized compensation costs related to unvested restricted stock units |  |  |  |  |  | $ 203,800,000 |  |  |  |  |  |  |  |
Unrecognized compensation costs recognized weighted average period (in years) |  |  |  |  |  | 1 year 8 months 12 days |  |  |  |  |  |  |  |
EIP 2015 | Restricted Stock Units (RSUs) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unvested awards (in shares) |  |  |  |  |  | 2,700,000 |  |  |  |  |  |  |  |
EIP 2015 | PSUs |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unvested awards (in shares) |  |  |  |  |  | 300,000 |  |  |  |  |  |  |  |
2024 Share Repurchase Program |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchases of treasury stock (in shares) |  |  | 10,400,000 |  |  | 10,400,000 | 0 | 0 |  |  |  |  |  |
Purchases of treasury stock |  |  | $ 750,000,000.0 |  |  |  |  |  |  |  |  |  |  |
2024 Share Repurchase Program | Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  |  |  |  | $ 750,000,000.0 |  |  |  |  |

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