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RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS- Components of net periodic costs (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jul. 31, 2025 | Jul. 31, 2024 | Jul. 31, 2025 | Jul. 31, 2024
Pension Plan | United States |  |  |  |
Defined Benefit Plan, Net Periodic Benefit Cost (Income) |  |  |  |
Service cost - benefits earned during the period | $ 0 | $ 0 | $ 0 | $ 0
Interest cost on benefit obligation | 5 | 6 | 15 | 16
Expected return (loss) on plan assets | (6) | (5) | (18) | (15)
Amortization of net actuarial gain (loss) | 0 | 0 | 0 | (1)
Amortization of Prior Service Benefit | 0 | 0 | 0 | 0
Total net periodic benefit cost (income) | (1) | 1 | (3) | 2
Pension Plan | Foreign Plan |  |  |  |
Defined Benefit Plan, Net Periodic Benefit Cost (Income) |  |  |  |
Service cost - benefits earned during the period | 6 | 5 | 13 | 13
Interest cost on benefit obligation | 6 | 7 | 17 | 20
Expected return (loss) on plan assets | (12) | (9) | (33) | (28)
Amortization of net actuarial gain (loss) | 7 | 4 | 19 | 12
Amortization of Prior Service Benefit | 0 | 0 | 0 | 0
Total net periodic benefit cost (income) | (7) | (1) | (22) | (7)
Curtailments and Settlements |  |  |  |
Settlement (gain) loss |  |  | 14 |
Other Postretirement Benefits Plan | United States |  |  |  |
Defined Benefit Plan, Net Periodic Benefit Cost (Income) |  |  |  |
Service cost - benefits earned during the period | 0 | 0 | 0 | 0
Interest cost on benefit obligation | 1 | 1 | 3 | 3
Expected return (loss) on plan assets | (1) | (1) | (4) | (3)
Amortization of net actuarial gain (loss) | 0 | 0 | 1 | 1
Amortization of Prior Service Benefit | (1) | 0 | (1) | 0
Total net periodic benefit cost (income) | $ (1) | $ 0 | $ (3) | $ (1)

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- Definition Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 3A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480535/715-20-45-3A Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-18 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h)(5) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(5) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-6 + Details
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- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 3A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480535/715-20-45-3A Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-18 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-6 + Details
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