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PENSION AND OTHER POSTRETIREMENT BENEFITS - Other (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Oct. 31, 2016 | Oct. 31, 2015
Amounts recognized in balance sheet |  |
Noncurrent asset | $ 93.6 | $ 215.6
Pensions |  |
Amounts recognized in balance sheet |  |
Noncurrent asset | 94.0 | 216.0
Current liability | (33.0) | (44.0)
Noncurrent liability | (2,010.0) | (1,194.0)
Funded status | (1,949.0) | (1,022.0)
Amounts recognized in accumulated other comprehensive income - pretax |  |
Net actuarial loss | 5,309.0 | 4,393.0
Prior service cost (credit) | 67.0 | 83.0
Total | 5,376.0 | 4,476.0
Accumulated Benefit Obligations - Additional Disclosures |  |
Accumulated benefit obligation for pension plans | 12,410.0 | 11,508.0
Accumulated Benefit Obligations in Excess of Plan Assets |  |
Accumulated benefit obligations for pension plans with accumulated benefit obligations in excess of plan assets | 8,402.0 | 7,254.0
Fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets | 7,016.0 | 6,669.0
Projected Benefit Obligations in Excess of Plan Assets |  |
Projected benefit obligations for pension plans with projected benefit obligations in excess of plan assets | 9,157.0 | 8,196.0
Fair value of plan assets for pension plans with projected benefit obligations in excess of plan assets | 7,114.0 | 6,958.0
Amounts in accumulated other comprehensive income that are expected to be amortized as net expense (income) during fiscal 2017 |  |
Net actuarial loss | 240.0 |
Prior service cost (credit) | 12.0 |
Total | 252.0 |
Expected future employer contributions towards defined benefit plans, which are primarily direct benefit payments for unfunded plans | 59.0 |
Benefits expected to be paid from the benefit plans, which reflect expected future years of service |  |
2017 | 717.0 |
2018 | 721.0 |
2019 | 709.0 |
2020 | 707.0 |
2021 | 696.0 |
2022 to 2026 | 3,454.0 |
Health Care and Life Insurance |  |
Amounts recognized in balance sheet |  |
Current liability | (32.0) | (20.0)
Noncurrent liability | (6,033.0) | (5,375.0)
Funded status | (6,065.0) | (5,395.0)
Amounts recognized in accumulated other comprehensive income - pretax |  |
Net actuarial loss | 1,865.0 | 1,442.0
Prior service cost (credit) | (259.0) | (334.0)
Total | 1,606.0 | $ 1,108.0
Amounts in accumulated other comprehensive income that are expected to be amortized as net expense (income) during fiscal 2017 |  |
Net actuarial loss | 101.0 |
Prior service cost (credit) | (77.0) |
Total | 24.0 |
Expected future employer contributions towards defined benefit plans, which are primarily direct benefit payments for unfunded plans | 38.0 |
Benefits expected to be paid from the benefit plans, which reflect expected future years of service |  |
2017 | 339.0 |
2018 | 353.0 |
2019 | 356.0 |
2020 | 358.0 |
2021 | 362.0 |
2022 to 2026 | $ 1,834.0 |

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- Definition For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Accumulated Benefit Obligation -URI http://asc.fasb.org/extlink&oid=6503844 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition The pretax total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (i-k) -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669646-108580 + Details
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- Definition The pretax net amount of gains and losses that are not yet recognized as a component of net periodic benefit cost, and that are recognized as increases or decreases in other comprehensive income as they arise. Gains and losses are due to changes in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669646-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Amount related to the pretax cost of benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation, which has not yet been recognized as components of net periodic benefit cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Prior Service Cost -URI http://asc.fasb.org/extlink&oid=49177896 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669646-108580 + Details
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- Definition Amount included in accumulated other comprehensive income (AOCI) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position, including gain (loss), prior service cost (credit), and transition asset (obligation). + References No definition available. + Details
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