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Employee Benefit Plans and Stockholders' Equity - Narrative (Details) - USD ($)
 1 Months Ended 3 Months Ended 12 Months Ended
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