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Earnings Per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Detail) - shares
shares in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Employee Stock Options    
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount 9 17