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Financing Receivables - Purchases, Sales and Nonperforming (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Nonperforming |  |  |
Financing Receivables |  |  |
Loans | $ 12 | $ 11 |
Deteriorated credit quality |  |  |
Financing Receivables |  |  |
Loans purchased | 0 |  |
Commercial Loans | Commercial mortgage loans |  |  |
Financing Receivables |  |  |
Loans sold | 0 | 0 | $ 746
Loans | 1,832 | 1,882 |
Commercial Loans | Syndicated loans |  |  |
Financing Receivables |  |  |
Loans sold | 4 | 1 | 354
Loans purchased | 21 | 67 | 37
Loans | 145 | 175 |
Consumer Loans | Residential mortgage loans |  |  |
Financing Receivables |  |  |
Loans purchased | 202 | 72 | $ 33
Loans | $ 300 | $ 117 |

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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-5 + Details
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- Definition Amount of increase in financing receivable from purchase. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-11 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B + Details
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