Retirement and Post-Retirement Benefit Plans - Summary of Net Benefit Cost (Details) - Benefit Plans - Non-U.S. Defined Benefit Plans - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Apr. 30, 2018 |
Apr. 30, 2017 |
Apr. 30, 2018 |
Apr. 30, 2017 |
|
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | ||||
| Service cost | $ 27 | $ 30 | $ 53 | $ 70 |
| Interest cost | 58 | 52 | 113 | 102 |
| Expected return on plan assets | (145) | (131) | (284) | (264) |
| Amortization and deferrals: | ||||
| Actuarial loss | 54 | 64 | 106 | 140 |
| Prior service benefit | (4) | (4) | (8) | (8) |
| Net periodic benefit (credit) cost | (10) | 11 | (20) | 40 |
| Settlement loss | 2 | 3 | 2 | 3 |
| Special termination benefits | 2 | 1 | 4 | 2 |
| Plan expense allocation | 0 | (4) | 0 | (16) |
| Net benefit (credit) cost from continuing operations | (6) | 11 | (14) | 29 |
| Discontinued operations | 0 | 34 | 0 | 80 |
| Net benefit (credit) cost | $ (6) | $ 45 | $ (14) | $ 109 |
| X | ||||||||||
- Definition The total amount of net periodic benefit cost (credit) for defined benefit plans for the period, before gain or loss due to settlements or curtailments. No definition available.
|
| X | ||||||||||
- Definition Defined Benefit Plan, Net Periodic Benefit Cost, Continuing Operations No definition available.
|
| X | ||||||||||
- Definition Defined Benefit Plan, Net Periodic Benefit Cost, Discontinued Operations No definition available.
|
| X | ||||||||||
- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of defined benefit plan cost (credit), classified as other. No definition available.
|
| X | ||||||||||
- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of (increase) decrease to benefit obligation of defined benefit plan from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Includes, but is not limited to, lump-sum cash payment to participant in exchange for right to receive specified benefits, purchase of nonparticipating annuity contract and change from remeasurement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of increase in benefit obligation for benefits provided to employees payable from defined benefit plan or payable upon retirement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|