BUSINESSES HELD FOR SALE AND DISCONTINUED OPERATIONS - Financial Information for Discontinued Operations - Footnote (Details) - Discontinued operations - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Valuation allowance on finance receivables classified as held for sale	$ 1,792	$ 1,963
All other liabilities	1,101	1,125
Bank BPH \| Bank BPH litigation
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Valuation allowance on finance receivables classified as held for sale	1,553	1,712
All other liabilities	964	957
Estimated borrower litigation losses	$ 2,517	$ 2,669

Amount classified as other liabilities attributable to disposal group held for sale or disposed of.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 360
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 205
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant