LOANS - Corporate Loans Gross Credit Losses (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 2,715	$ 1,879	$ 5,405	$ 3,513
Corporate loans
Financing Receivable, Credit Quality Indicator [Line Items]
2024			3	8
2023			37	0
2022			12	0
2021			9	2
2020			0	0
Prior			82	4
Revolving line of credit arrangement			164	111
Total	$ 129	$ 86	307	125
Corporate loans \| Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2024			2	8
2023			0	0
2022			3	0
2021			9	1
2020			0	0
Prior			3	2
Revolving line of credit arrangement			111	48
Total			128	59
Corporate loans \| Financial institutions
Financing Receivable, Credit Quality Indicator [Line Items]
2024			0	0
2023			0	0
2022			0	0
2021			0	0
2020			0	0
Prior			1	0
Revolving line of credit arrangement			9	33
Total			10	33
Corporate loans \| Mortgage and real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024			1	0
2023			37	0
2022			9	0
2021			0	1
2020			0	0
Prior			63	2
Revolving line of credit arrangement			20	0
Total			130	3
Corporate loans \| Other
Financing Receivable, Credit Quality Indicator [Line Items]
2024			0	0
2023			0	0
2022			0	0
2021			0	0
2020			0	0
Prior			15	0
Revolving line of credit arrangement			24	30
Total			$ 39	$ 30

Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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