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Employee Benefits Assets and Liabilities associated with Non-qualified benefit plans (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Document Period End Date | Dec. 31, 2022 |
Non-qualified benefit plan trust | $ 38 | $ 45
Non-qualified benefit plan liabilities | 83 | 95
OtherPostretirementDefinedBenefitPlanLiabilityCurrent | 2 | 2
Other Postretirement Benefit Plans [Domain] |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Non-qualified benefit plan trust | 0 | 0
Defined Benefit Pension Plan [Member] |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Non-qualified benefit plan trust | 19 | 24
Non-qualified benefit plan liabilities | 67 | 70
Non Qualified Benefit Plans [Member] |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Non-qualified benefit plan trust | 19 | 21
Non-qualified benefit plan liabilities | $ 16 | $ 25

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- Definition For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD. + References No definition available. + Details
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- Definition This represents the current liability recognized in the balance sheet that is associated with other postretirement defined benefit plans (excluding pension plans). + References No definition available. + Details
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- Definition The amount of cash, securities, or other assets held by a third-party trustee pursuant to the terms of an agreement which assets are available to be used by beneficiaries to that agreement only within the specific terms thereof and which agreement is expected to terminate more than one year from the balance sheet date (or operating cycle, if longer) at which time the assets held-in-trust will be released or forfeited. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(b)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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