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Employee Benefit Plans (Benefit Payments Expected Future Service) (Detail) $ in Millions | Dec. 31, 2020 USD ($)
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Pension Benefits |
Defined Benefit Plan Disclosure [Line Items] |
2021 | $ 486
2022 | 512
2023 | 515
2024 | 533
2025 | 535
2026-2030 | 2,792
Other Postretirement Benefits |
Defined Benefit Plan Disclosure [Line Items] |
2021 | 110
2022 | 108
2023 | 106
2024 | 104
2025 | 101
2026-2030 | $ 478

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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=118255775&loc=d3e1928-114920 + Details
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