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Employee Benefit Plans | 12 Months Ended
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Mar. 31, 2026
Retirement Benefits [Abstract] |
Employee Benefit Plans | Employee Benefit Plans Defined Contribution Plan The total expense recognized under the ECAP for fiscal 2026, 2025, and 2024 was $226 million, $249 million, and $218 million, respectively, and the Company-paid contributions were $232 million, $240 million, and $213 million, respectively. Defined Benefit Plans for Post Retirement Benefits The weighted-average discount rate used to determine the year-end benefit obligation for the Officer Medical Plan were 5.85%, 5.55% and 5.20% for fiscal 2026, 2025, and 2024, respectively. Assumed healthcare cost trend rates for the Officer Medical Plan at March 31 were as follows:
Pre-65 initial rate |  | 2026 |  | 2025
Healthcare cost trend rate assumed for next year |  | 8.10 | % |  | 8.25 | %
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate) |  | 4.50 | % |  | 4.50 | %
Year that the rate reaches the ultimate trend rate |  | 2036 |  | 2034
Post-65 initial rate |  | 2026 |  | 2025
Healthcare cost trend rate assumed for next year |  | 9.20 | % |  | 8.95 | %
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate) |  | 4.50 | % |  | 4.50 | %
Year that the rate reaches the ultimate trend rate |  | 2036 |  | 2034
The changes in the benefit obligation of the unfunded Officer Medical Plan were as follows:
|  | Fiscal Year Ended March 31,
|  | 2026 |  | 2025 |  | 2024
Benefit obligation, beginning of the year (1) |  | $ | 174 |  |  | $ | 127 |  |  | $ | 106 |
Service cost |  | 7 |  |  | 6 |  |  | 5 |
Interest cost |  | 10 |  |  | 6 |  |  | 5 |
Net actuarial (gain) loss |  | (3) |  |  | 41 |  |  | 17 |
Benefits paid |  | (6) |  |  | (6) |  |  | (6) |
Gain due to curtailment |  | (2) |  |  | — |  |  | — |
Benefit obligation, end of the year (1) |  | $ | 180 |  |  | $ | 174 |  |  | $ | 127 |
(1) The short term and long term portion of the Officer Medical Plan’s benefit obligation is included in accrued compensation and other long-term liabilities, respectively, in the accompanying consolidated balance sheets. The net actuarial gain related to the benefit obligation in fiscal 2026 was primarily driven by an increase in interest rates, partially offset by unfavorable changes in medical trends. The net actuarial loss related to the benefit obligation in fiscal 2025 was primarily due to unfavorable updates in estimated medical claims and medical inflation, partially offset by an increase in the discount rate. The net actuarial loss related to the benefit obligation in fiscal 2024 was primarily due to unfavorable updates in estimated medical claims, medical inflation, and demographic assumptions, partially offset by increases in discount rate. The expected future medical benefit payments and related contributions are as follows:
For the Fiscal Year Ending March 31, |
2027 | $ | 8 |
2028 | 8 |
2029 | 9 |
2030 | 10 |
2031 | 11 |
2032 - 2036 | 64 |
Total | $ | 110 |

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