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Fair Value Measurement - Quantitative Information - Liabilities (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Recurring |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Total liabilities carried at fair value | $ (198) | $ (607)
Level 3 | Recurring |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Total liabilities carried at fair value | (198) | $ (607)
Level 3 | Credit derivative liabilities, net |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value inputs internal floor |  | 0.10%
Level 3 | Credit derivative liabilities, net | Valuation, Income Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Total liabilities carried at fair value | $ (29) | $ (50)
Level 3 | Credit derivative liabilities, net | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value inputs bank profit | 0.732% | 1.056%
Fair value inputs internal floor | 0.10% |
Level 3 | Credit derivative liabilities, net | Minimum | Valuation, Income Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value inputs hedge cost | 0.128% | 0.102%
Level 3 | Credit derivative liabilities, net | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value inputs bank profit | 2.759% | 3.026%
Fair value inputs internal floor | 0.855% |
Level 3 | Credit derivative liabilities, net | Maximum | Valuation, Income Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value inputs hedge cost | 0.301% | 0.265%
Level 3 | Credit derivative liabilities, net | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value inputs bank profit | 1.393% | 1.586%
Fair value inputs internal floor | 2970.00% |
Level 3 | Credit derivative liabilities, net | Weighted Average | Valuation, Income Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value inputs hedge cost | 0.168% | 0.158%
Level 3 | FG VIEs (see Note 8) | Valuation, Income Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Total liabilities carried at fair value | $ (164) | $ (554)
Level 3 | FG VIEs (see Note 8) | Minimum | Valuation, Income Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Yield (as a percent) | 5.50% | 5.00%
Level 3 | FG VIEs (see Note 8) | Maximum | Valuation, Income Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Yield (as a percent) | 10.80% | 10.70%
Level 3 | FG VIEs (see Note 8) | Weighted Average | Valuation, Income Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Yield (as a percent) | 7.00% | 5.80%
Conditional prepayment rate (CPR) | Level 3 | FG VIEs (see Note 8) | Minimum | Valuation, Income Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Conditional prepayment rate (as a percent) | 2.20% | 0.20%
Conditional prepayment rate (CPR) | Level 3 | FG VIEs (see Note 8) | Maximum | Valuation, Income Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Conditional prepayment rate (as a percent) | 25.00% | 21.40%
Conditional prepayment rate (CPR) | Level 3 | FG VIEs (see Note 8) | Weighted Average | Valuation, Income Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Conditional prepayment rate (as a percent) | 5.70% | 7.80%
CDR | Level 3 | Minimum | Credit Default Swap | Recurring |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Conditional prepayment rate (as a percent) | 3.90% | 3.30%
CDR | Level 3 | Maximum | Credit Default Swap | Recurring |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Conditional prepayment rate (as a percent) | 4.40% | 4.80%
CDR | Level 3 | Weighted Average | Credit Default Swap | Recurring |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Conditional prepayment rate (as a percent) | 4.30% | 3.60%
CDR | Level 3 | FG VIEs (see Note 8) | Minimum | Valuation, Income Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Conditional prepayment rate (as a percent) | 1.30% | 1.30%
CDR | Level 3 | FG VIEs (see Note 8) | Maximum | Valuation, Income Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Conditional prepayment rate (as a percent) | 41.00% | 41.00%
CDR | Level 3 | FG VIEs (see Note 8) | Weighted Average | Valuation, Income Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Conditional prepayment rate (as a percent) | 10.70% | 10.40%
Loss severity | Level 3 | FG VIEs (see Note 8) | Minimum | Valuation, Income Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Conditional prepayment rate (as a percent) | 45.00% | 45.00%
Loss severity | Level 3 | FG VIEs (see Note 8) | Maximum | Valuation, Income Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Conditional prepayment rate (as a percent) | 100.00% | 100.00%
Loss severity | Level 3 | FG VIEs (see Note 8) | Weighted Average | Valuation, Income Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Conditional prepayment rate (as a percent) | 83.20% | 82.90%

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- Definition Estimated rate of prepayment of principal on financial assets for initial fair value measurement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481326/860-20-50-3 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 103 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-103 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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