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Income Taxes - Federal NOLs and Excess Business Interest (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Income Taxes Summary [Line Items] |  |
Total federal net operating losses | $ 870 | $ 784
Attributes subject to Section 382 base annual limitation, 54 million | Excess business interest expense (indefinitely lived) |  |
Income Taxes Summary [Line Items] |  |
Operating loss carryforwards | 1,435 |
Attributes subject to Section 382 base annual limitation, 54 million | Federal |  |
Income Taxes Summary [Line Items] |  |
Indefinitely lived | 2,265 |
Total federal net operating losses | 3,079 |
Attributes subject to Section 382 base annual limitation, 54 million | 2037 | Federal |  |
Income Taxes Summary [Line Items] |  |
Net operating losses, by year of expiration: | 814 |
Attributes subject to Section 382 base annual limitation, 2 million | Excess business interest expense (indefinitely lived) |  |
Income Taxes Summary [Line Items] |  |
Operating loss carryforwards | 90 |
Attributes subject to Section 382 base annual limitation, 2 million | Federal |  |
Income Taxes Summary [Line Items] |  |
Indefinitely lived | 102 |
Total federal net operating losses | 126 |
Attributes subject to Section 382 base annual limitation, 2 million | 2037 | Federal |  |
Income Taxes Summary [Line Items] |  |
Net operating losses, by year of expiration: | 24 |
Attributes not subject to Section 382 limitation | Excess business interest expense (indefinitely lived) |  |
Income Taxes Summary [Line Items] |  |
Operating loss carryforwards | 1,368 |
Attributes not subject to Section 382 limitation | Federal |  |
Income Taxes Summary [Line Items] |  |
Indefinitely lived | 0 |
Total federal net operating losses | 0 |
Attributes not subject to Section 382 limitation | 2037 | Federal |  |
Income Taxes Summary [Line Items] |  |
Net operating losses, by year of expiration: | $ 0 |

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