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Share-Based Compensation (Tables)
 12 Months Ended
Mar. 31, 2026
Share-Based Payment Arrangement [Abstract]  
Schedule of Components of Share-Based Compensation Expense and Related Tax Benefits
The components of share-based compensation expense and related tax benefits were as follows:
Years Ended March 31,
(In millions)202620252024
Restricted stock unit awards (1)
$231 $211 $168 
Employee stock purchase plan16 15 14 
Share-based compensation expense 247 226 182 
Tax benefit for share-based compensation expense
(72)(85)(72)
Share-based compensation expense, net of tax$175 $141 $110 
(1)Includes share-based compensation expense recognized for RSUs and PSUs.
Schedule of Assumptions Used to Estimate Fair Value of PSUs
The weighted-average assumptions used in the Monte Carlo valuations were as follows:
Years Ended March 31,
202620252024
Expected stock price volatility23 %21 %24 %
Expected dividend yield
0.4 %0.5 %0.6 %
Risk-free interest rate3.9 %4.5 %3.9 %
Expected life (in years)
333
Schedule of Restricted Stock Unit Award Activity
The following table summarizes activity for RSUs and PSUs during fiscal 2026:
(In millions, except per share data)SharesWeighted-
Average
Grant Date Fair
Value Per Share
Nonvested, March 31, 2025
0.9 $434.89 
Granted0.3 728.77 
Cancelled0.0 527.76 
Vested(0.4)394.72 
Nonvested, March 31, 2026
0.8 $556.43 
Schedule of Data Related to Restricted Stock Unit Award Activity
The following table provides data related to RSU and PSU award activity:
Years Ended March 31,
(In millions)202620252024
Total fair value of shares vested$179 $192 $143 
Total compensation cost, net of estimated forfeitures, related to nonvested restricted stock unit awards not yet recognized, pre-tax
$187 $191 $205 
Weighted-average period in years over which restricted stock unit award cost is expected to be recognized
112