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Employee Benefit Plans (Schedule of Expected Future Benefit Payments) (Details) $ in Millions | Dec. 31, 2020 USD ($)
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Pension Plans, Defined Benefit [Member] |
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract] |
Defined Benefit Plan, Expected Future Benefit Payments in Year One | $ 11
Defined Benefit Plan, Expected Future Benefit Payments in Year Two | 14
Defined Benefit Plan, Expected Future Benefit Payment, Year Three | 14
Defined Benefit Plan, Expected Future Benefit Payment, Year Four | 15
Defined Benefit Plan, Expected Future Benefit Payment, Year Five | 16
Defined Benefit Plan, Expected Future Benefit Payments in Five Fiscal Years Thereafter | 92
Other Postretirement Benefit Plans, Defined Benefit [Member] |
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract] |
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 Payment, Year Three | 2
Defined Benefit Plan, Expected Future Benefit Payment, Year Four | 2
Defined Benefit Plan, Expected Future Benefit Payment, Year Five | 3
Defined Benefit Plan, Expected Future Benefit Payments in Five Fiscal Years Thereafter | $ 18

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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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- Definition Amount of benefit for defined benefit plan expected to be paid in next 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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- Definition Amount of benefit for defined benefit plan expected to be paid in 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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- Definition Amount of benefit for defined benefit plan expected to be paid in fourth 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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- Definition Amount of benefit for defined benefit plan expected to be paid in third 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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- Definition Amount of benefit for defined benefit plan expected to be paid in second 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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