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Retirement Plans Projected Benefit Payments from Plans (Details) $ in Millions | 12 Months Ended
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Sep. 30, 2021 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Total employer and employee contributions to defined benefit plans | $ 65
Voluntary contributions made by the company to defined benefit plans | 0
Estimated future employer contributions to defined benefit plans in next fiscal year | 42
Projected prescription drug subsidy receipts per year over the next ten years | 1
Pension Benefits |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
2022 | 329
2023 | 298
2024 | 285
2025 | 280
2026 | 284
2027-2031 | 1,387
Postretirement Benefits |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Total employer and employee contributions to defined benefit plans | 3
Estimated future employer contributions to defined benefit plans in next fiscal year | 3
2022 | 11
2023 | 11
2024 | 11
2025 | 10
2026 | 10
2027-2031 | $ 38

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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 http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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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 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 http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount of (increase) decrease in net periodic benefit cost from government subsidy for prescription drug benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39689-114964 + Details
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