v3.25.4
Share-Based Payments (Summary of Restricted Stock Unit and Performance Stock Activity) (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Restricted Stock Units (RSUs)      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Outstanding, beginning of period (in shares) 2.1    
Granted (in shares) 1.0    
Converted (in shares) (1.1)    
Forfeited (in shares) (0.1)    
Outstanding, end of period (in shares) 1.9 2.1  
Units expected to vest at the end of the period 1.8    
Weighted-Average Grant-Date Fair Value      
Weighted-average grant-date fair value, units outstanding, beginning of period $ 403    
Weighted-average grant-date fair value, granted 566 $ 472 $ 350
Weighted-average grant-date fair value, converted 385    
Weighted-average grant-date fair value, forfeited 470    
Weighted-average grant-date fair value, units outstanding, end of period 498 $ 403  
Weighted-average grant-date fair value, units vested and expected to vest at the end of the period $ 498    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value [Abstract]      
Aggregate intrinsic value, units outstanding at the end of the period $ 1,070    
Aggregate intrinsic value, units expected to vest at the end of the period $ 1,032    
Performance stock units      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Outstanding, beginning of period (in shares) 0.6    
Granted (in shares) 0.2    
Converted (in shares) (0.2)    
Other (in shares) 0.0    
Outstanding, end of period (in shares) 0.6 0.6  
Units expected to vest at the end of the period 0.6    
Weighted-Average Grant-Date Fair Value      
Weighted-average grant-date fair value, units outstanding, beginning of period $ 396    
Weighted-average grant-date fair value, granted 608 $ 512 $ 365
Weighted-average grant-date fair value, converted 335    
Weighted-average grant-date fair value, other 364    
Weighted-average grant-date fair value, units outstanding, end of period 472 $ 396  
Weighted-average grant-date fair value, units vested and expected to vest at the end of the period $ 472    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value [Abstract]      
Aggregate intrinsic value, units outstanding at the end of the period $ 335    
Aggregate intrinsic value, units expected to vest at the end of the period $ 331