v3.26.1
Share-Based Compensation (Summary of RSU and PSRU Activity) (Detail) - RSUs - RSUs and PRSUs - RSUs and PRSUs
shares in Millions
6 Months Ended
Jun. 30, 2026
$ / shares
shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Unvested at December 31, 2025 | shares 1.2
Granted during 2026 | shares 1.0
Vested during 2026 | shares (0.7)
Unvested at June 30, 2026 | shares 1.5
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]  
Unvested at December 31, 2025 | $ / shares $ 63.46
Granted during 2026 | $ / shares 68.49
Vested during 2026 | $ / shares 65.22
Unvested at June 30, 2026 | $ / shares $ 66.09