GOODWILL AND INTANGIBLE ASSETS - Goodwill Rollforward (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Goodwill [Roll Forward]
Beginning balance	$ 8,187	$ 8,188
Divestitures		(1)
Business acquisitions	0
Ending balance	8,187	8,187
Consumer Banking
Goodwill [Roll Forward]
Beginning balance	2,678	2,678
Divestitures		0
Business acquisitions	0
Ending balance	2,678	2,678
Commercial Banking
Goodwill [Roll Forward]
Beginning balance	5,509	5,510
Divestitures		(1)
Business acquisitions	0
Ending balance	$ 5,509	$ 5,509