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Short-term Borrowings and Long-term Debt (Significant Debt Repayments) (Details) - 3.550% Debt Due June 2025 - Unsecured Debt $ in Millions	6 Months Ended
	Jul. 31, 2025 USD ($)
Debt Instrument [Line Items]
Principal Amount	$ 875
Interest Rate	3.55%
Significant repayments of long term debt	$ 875

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