Pension and Other Postretirement Benefits (Expected Benefit Payments) (Details) $ in Millions	Apr. 30, 2023 USD ($)
Pension Benefits [Member]
Expected benefit payments over the next 10 years
2024	$ 53
2025	52
2026	54
2027	55
2028	56
2029 – 2033	287
Medical and Life Insurance Benefits [Member]
Expected benefit payments over the next 10 years
2024	4
2025	3
2026	3
2027	3
2028	3
2029 – 2033	$ 15

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- Definition

Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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- Definition

Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

+ References

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Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.

+ References

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Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.

+ References

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Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.

+ References

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Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.

+ References

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