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Basis of Presentation and Significant Accounting Policies Supplemental Cash Flow Information (Tables) | 12 Months Ended
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Dec. 31, 2023
Schedule of Cash Flow Supplemental Information [Line Items] |
Schedule of Supplemental Cash Flow Information [Table Text Block] | Supplemental Disclosure of Cash Flow Information
Year Ended December 31, |  | 2023 |  | 2022 |  | 2021
Cash paid during the period for: |  |  |  |  |  |
Income taxes |  | $ | 11 |  |  | $ | 6 |  |  | $ | 15 |
Interest on long-term debt |  | 50 |  |  | 283 |  |  | 80 |
Non-cash investing and financing activities: |  |  |  |  |  |
Exchange of investments in Puerto Rico bonds for new securities issued in the restructuring transactions |  | — |  |  | 185 |  |  | — |
Decrease in long-term debt as a result of surplus notes exchanges |  | — |  |  | — |  |  | 71 |
Securities acquired (transferred) in transactions related to Puerto Rico restructurings |  | (1) |  |  | 508 |  |  | — |
Loans acquired through financial guarantee subrogation |  | — |  |  | 20 |  |  | — |
VIE long-term debt issued related to Puerto Rico restructurings |  | — |  |  | 583 |  |  | — |
Decrease in VIE loans as a result of de-consolidations |  | 133 |  |  | — |  |  | — |
Decrease in VIE long-term debt as a result of de-consolidations |  | 133 |  |  | — |  |  | — |
Increase in VIE long-term debt as a result of consolidations |  | 89 |  | — |  |  | — |
December 31, |  | 2023 |  | 2022 |  | 2021
Reconciliation of cash, cash equivalents, and restricted cash reported within the Consolidated Balance Sheets to the Consolidated Statements of Cash Flow: |  |  |  |  |  |
Cash and cash equivalents |  | $ | 16 |  |  | $ | 31 |  |  | $ | 17 |
Restricted cash |  | 12 |  |  | 14 |  |  | 5 |
Variable Interest Entity Restricted cash |  | 246 |  |  | 17 |  |  | 2 |
Total cash, cash equivalents, and restricted cash shown on the Consolidated Statements of Cash Flows |  | 274 |  |  | 61 |  |  | 23 |
Cash Flow, Supplemental Disclosures [Text Block] | Supplemental information related to leases is as follows:
Year Ended December 31, |  | 2023 |  | 2022
Cash paid for amounts included in the measurement of operating lease liabilities |  | $ | 5 |  |  | $ | 5 |
Right-of-use assets obtained in exchange for operating lease liabilities (non-cash) |  | 1 |  |  | — |
Redeemable Noncontrolling Interest | Following is a rollforward of redeemable noncontrolling interest.
Years ended December 31, | 2023 |  | 2022
Beginning balance | $ | 20 |  |  | $ | 18 |
Fair value of redeemable noncontrolling interest at acquisition date | 2 |  |  | 5 |
Net income attributable to redeemable noncontrolling interest (ASC 810) | 1 |  |  | 1 |
Distributions | (2) |  |  | (1) |
Adjustment to redemption value (ASC 480 ) | (5) |  |  | (3) |
Ending Balance | $ | 17 |  |  | $ | 20 |

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- Definition [Line Items] for Schedule of Cash Flow Supplemental Information [Table] + References No definition available. + Details
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- Definition The entire disclosure for supplemental cash flow activities, including cash, noncash, and part noncash transactions, for the period. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//230/tableOfContent + Details
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- Definition Tabular disclosure of redeemable noncontrolling interest (as defined) included in the statement of financial position as either a liability or temporary equity. As of the date of the statement of financial position, such redeemable noncontrolling interest is currently redeemable, as defined, for cash or other assets of the entity at (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the entity. + References No definition available. + Details
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- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
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