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Employee Benefit Plans - Benefit Payments (Details) $ in Millions | Dec. 31, 2018 USD ($)
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Pension Benefits |
Defined Benefit Plan, Expected Future Benefit Payments, Rolling Maturity [Abstract] (Deprecated 2017-01-31) |
2018 | $ 239
2019 | 239
2020 | 246
2021 | 251
2022 | 250
2024 - 2028 | 1,263
Total | 2,488
Other Postretirement Benefits |
Defined Benefit Plan, Expected Future Benefit Payments, Rolling Maturity [Abstract] (Deprecated 2017-01-31) |
2018 | 27
2019 | 24
2020 | 22
2021 | 20
2022 | 18
2024 - 2028 | 67
Total | $ 178

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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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
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- Definition Amount of benefits for defined benefit plan expected to be paid in fifth fiscal year following latest fiscal year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
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