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Retirement Plans and Post Retirement Benefits Defined Benefit Plans (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Retirement Benefits [Abstract] |  |  |
Maximum benefit amortization period | 20 years |  |
Approximate percentage of assets represented by most significant plans | 80.00% |  |
Approximate percentage of benefit obligations represented by most significant plans | 82.00% |  |
Rate of eligible compensation increase | 3.00% |  |
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment and Tax | $ (1) | $ 3 | $ 0
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax | $ 6 | $ 5 | $ 4

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- Definition Defined Benefit Plan, Maximum Amortization Period + References No definition available. + Details
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- Definition Defined Benefit Plan, Significant Plans, Approximate Percentage of Beneift Obligation Accounted for + References No definition available. + Details
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- Definition Defined Benefit Plan, Significant Plans, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase + References No definition available. + Details
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- Definition Amount, before tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=124509347&loc=d3e637-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (i-k) -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580 + Details
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