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Pension Plans and Other Retirement Benefits - Schedule of Benefits Expected to be Paid in Each of Next Five Fiscal Years and Thereafter (Details) $ in Millions | Jan. 31, 2026 USD ($)
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Funded Plan |
Defined Benefit Plan Disclosure [Line Items] |
2027 | $ 91
2028 | 96
2029 | 100
2030 | 103
2031 | 105
2032 through 2036 | 548
Unfunded Plan |
Defined Benefit Plan Disclosure [Line Items] |
2027 | 6
2028 | 14
2029 | 54
2030 | 9
2031 | 10
2032 through 2036 | $ 45

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