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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Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

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-Topic 326
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Amount of increase in financing receivable from purchase. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount of decrease in financing receivable from sale and reclassification to held-for-sale. Excludes net investment in lease.

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