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Employee Benefits Schedule of Expected Benefit Payments (Details) $ in Millions | Dec. 31, 2018 USD ($)
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Defined Benefit Plan Disclosure [Line Items] |
Defined Benefit Plan, Expected Future Benefit Payments in Year One | $ 48
Defined Benefit Plan, Expected Future Benefit Payments in Year Two | 49
Defined Benefit Plan, Expected Future Benefit Payments in Year Three | 51
Defined Benefit Plan, Expected Future Benefit Payments in Year Four | 52
Defined Benefit Plan, Expected Future Benefit Payments in Year Five | 53
Defined Benefit Plan, Expected Future Benefit Payments in Five Fiscal Years Thereafter | 270
Pension Plans, Defined Benefit [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Defined Benefit Plan, Expected Future Benefit Payments in Year One | 41
Defined Benefit Plan, Expected Future Benefit Payments in Year Two | 42
Defined Benefit Plan, Expected Future Benefit Payments in Year Three | 44
Defined Benefit Plan, Expected Future Benefit Payments in Year Four | 45
Defined Benefit Plan, Expected Future Benefit Payments in Year Five | 45
Defined Benefit Plan, Expected Future Benefit Payments in Five Fiscal Years Thereafter | 238
Other Postretirement Benefit Plans [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Defined Benefit Plan, Expected Future Benefit Payments in Year One | 5
Defined Benefit Plan, Expected Future Benefit Payments in Year Two | 5
Defined Benefit Plan, Expected Future Benefit Payments in Year Three | 5
Defined Benefit Plan, Expected Future Benefit Payments in Year Four | 5
Defined Benefit Plan, Expected Future Benefit Payments in Year Five | 6
Defined Benefit Plan, Expected Future Benefit Payments in Five Fiscal Years Thereafter | 22
Non Qualified Benefit Plans [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Defined Benefit Plan, Expected Future Benefit Payments in Year One | 2
Defined Benefit Plan, Expected Future Benefit Payments in Year Two | 2
Defined Benefit Plan, Expected Future Benefit Payments in Year Three | 2
Defined Benefit Plan, Expected Future Benefit Payments in Year Four | 2
Defined Benefit Plan, Expected Future Benefit Payments in Year Five | 2
Defined Benefit Plan, Expected Future Benefit Payments in Five Fiscal Years Thereafter | $ 10

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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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