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 ($)
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

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details