Employee Benefit Plans (Plan Asset Allocation) (Details)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan, Plan Assets, Allocations [Abstract]
Target allocation, rebalancing range	5.00%
Actual allocation	100.00%	100.00%
U.S. equity securities
Defined Benefit Plan, Plan Assets, Allocations [Abstract]
Target allocation	35.00%
Actual allocation	38.00%	52.00%
Investment grade fixed income securities
Defined Benefit Plan, Plan Assets, Allocations [Abstract]
Target allocation	55.00%
Actual allocation	53.00%	39.00%
High yield fixed income securities
Defined Benefit Plan, Plan Assets, Allocations [Abstract]
Target allocation	10.00%
Actual allocation	9.00%	9.00%

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- Definition

Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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- Definition

Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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- Definition

Defined Benefit Plan, Target Plan Asset Allocations, Rebalancing Range

+ References

No definition available.

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