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Income Taxes (Details 3) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Deferred tax assets: |  |
Net operating loss and capital loss carryforwards, state | $ 34 | $ 38
Net operating loss and capital loss carryforwards, foreign | 114 | 122
Retirement and other employee benefits | 25 | 51
Foreign tax credits | 44 | 18
State tax credits | 7 | 29
Other | 35 | 25
Operating lease liabilities | 64 | 62
Gross deferred tax assets | 323 | 345
Valuation allowance | (190) | (150)
Net deferred tax assets | 133 | 195
Deferred tax liabilities: |  |
Depreciation and amortization | (139) | (157)
Investments in partnerships | (858) | (998)
Operating lease right-of-use assets | (63) | (60)
Undistributed earnings | (12) | 0
Other | (19) | (9)
Deferred tax liabilities | (1,091) | (1,224)
Net deferred tax liability | (958) | (1,029)
Unrecognized tax benefits: |  |
Balance as of January 1 | 27 | 81
Additions for tax positions taken during the current year | 0 | 0
Additions for tax positions taken during prior years | 154 | 5
Reductions related to lapsed statutes of limitations | 0 | 0
Reductions related to settlements with tax jurisdictions | 0 | (59)
Balance as of December 31 | $ 181 | $ 27

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