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Supplemental Cash Flow Information - Schedule of Supplemental Cash Flow Information (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Net change in proceeds managed |  |  |
Net change in fixed income securities | $ (228) | $ (4) | $ 259
Net change in short-term investments | 335 | (146) | (139)
Operating cash flow provided (used) | 107 | (150) | 120
Net change in liabilities |  |  |
Liabilities for collateral, beginning of year | (2,041) | (1,891) | (2,011)
Liabilities for collateral, end of year | (1,934) | (2,041) | (1,891)
Operating cash flow (used) provided | $ (107) | $ 150 | $ (120)

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- Definition The net operating cash flow provided by (used in) the net change in liabilities for collateral. + References No definition available. + Details
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- Definition The net operating cash flow provided or used related to collateral received in conjunction with the entity's securities lending and over-the-counter derivatives. + References No definition available. + Details
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- References No definition available. + Details
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- References No definition available. + Details
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- Definition The net change in short-term investments from the proceeds managed related to collateral received in conjunction with the entity's securities lending and over-the-counter derivatives. + References No definition available. + Details
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- Definition Net Change in Fixed Income Term Investments of Proceeds Managed Collateral + References No definition available. + Details
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- Definition The liability to return cash and securities received as collateral in conjunction with securities lending and over-the-counter derivatives. + References No definition available. + Details
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