DERIVATIVES - Cash Flow Hedges (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Pretax change in accumulated other comprehensive income (loss)
Amount of gain (loss) recognized in AOCI on derivative	$ (373)	$ (80)	$ (738)	$ (261)
Amount of gain (loss) reclassified from AOCI to earnings	(24)	(168)	(59)	(357)
Cash flow hedge gain expected to be reclassified from AOCI within 12 months			$ (300)
Maximum length of time hedged in cash flow hedge			12 years
Cash flow hedges
Pretax change in accumulated other comprehensive income (loss)
Net pretax change in cash flow hedges included within AOCI	(349)	88	$ (679)	96
Interest rate contracts
Pretax change in accumulated other comprehensive income (loss)
Amount of gain (loss) recognized in AOCI on derivative	(376)	(80)	(705)	(261)
Amount of gain (loss) reclassified from AOCI to earnings	(17)	(168)	(44)	(357)
Foreign exchange contracts
Pretax change in accumulated other comprehensive income (loss)
Amount of gain (loss) recognized in AOCI on derivative	3	0	(33)	0
Amount of gain (loss) reclassified from AOCI to earnings	$ (7)	$ 0	$ (15)	$ 0

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
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Maximum period of hedging exposure to variability in future cash flow for forecasted transaction of cash flow hedge, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Excludes forecasted transaction for payment of variable interest on existing financial instrument.

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Amount, before tax and after reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness, attributable to parent.

+ References

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-Topic 220
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Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.

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Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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