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Income Taxes Schedule of Deferred tax Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Deferred income tax assets: |  |
Employee benefits | $ 99 | $ 114
Deferred income taxes | 75 | 39
Deferred Tax Assets, tax credits, net of valuation allowance | 102 | 98
Total deferred income tax assets | 276 | 251
Deferred income tax liabilities: |  |
Depreciation and amortization | 547 | 536
Deferred Tax Liabilities, Derivatives | 54 | 0
Regulatory assets | 101 | 121
Deferred Tax Liabilities, Other | 13 | 7
Deferred Tax Liabilities, Gross, Noncurrent | 715 | 664
Total deferred income tax liabilities | $ 439 | $ 413

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