Retirement Plans - Schedule of Expected Future Benefit Payments (Details) $ in Millions |
May 31, 2019
USD ($)
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| Pension Plans [Member] | U.S. Plans [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| 2020 | $ 1,027 |
| 2021 | 971 |
| 2022 | 1,051 |
| 2023 | 1,138 |
| 2024 | 1,230 |
| 2025-2029 | 7,515 |
| Pension Plans [Member] | International Pension Plans [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| 2020 | 45 |
| 2021 | 46 |
| 2022 | 47 |
| 2023 | 55 |
| 2024 | 61 |
| 2025-2029 | 396 |
| Postretirement Healthcare Plans [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| 2020 | 87 |
| 2021 | 98 |
| 2022 | 109 |
| 2023 | 117 |
| 2024 | 121 |
| 2025-2029 | $ 473 |
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- 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.
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- Definition Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of benefits for defined benefit plan expected to be paid in fifth fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of benefits for defined benefit plan expected to be paid in fourth fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of benefits for defined benefit plan expected to be paid in third fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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