DERIVATIVES - Credit Derivatives (Details) $ in Millions	9 Months Ended
	Sep. 30, 2022 USD ($) agency	Dec. 31, 2021 USD ($)
Credit Risk Derivatives
Fair values, receivable	$ 10,225	$ 10,218
Fair values, payable	9,342	11,015
Notionals, protection purchased	698,039	645,996
Notionals, protection sold	662,018	572,486
Fair value of derivative in liability position	23,000	19,000
Fair value of collateral already posted	$ 20,000	16,000
Number of rating agencies | agency	3
Additional collateral to be posted	$ 1,300
Collateral to be segregated	100
Aggregate cash obligations and collateral requirements	1,400
Fair value gross derivative assets	431,992	292,628
Purchased
Credit Risk Derivatives
Fair values, receivable	8,304	3,705
Fair values, payable	2,170	7,354
Sold
Credit Risk Derivatives
Fair values, receivable	1,921	6,513
Fair values, payable	7,172	3,661
Within 1 year
Credit Risk Derivatives
Fair values, receivable	2,276	878
Fair values, payable	1,918	1,462
Notionals, protection purchased	153,088	133,866
Notionals, protection sold	159,624	115,603
From 1 to 5 years
Credit Risk Derivatives
Fair values, receivable	5,319	6,674
Fair values, payable	4,878	6,638
Notionals, protection purchased	461,986	454,617
Notionals, protection sold	422,941	413,174
After 5 years
Credit Risk Derivatives
Fair values, receivable	2,630	2,666
Fair values, payable	2,546	2,915
Notionals, protection purchased	82,965	57,513
Notionals, protection sold	79,453	43,709
Investment grade
Credit Risk Derivatives
Fair values, receivable	4,534	4,149
Fair values, payable	3,742	4,258
Notionals, protection purchased	540,193	511,652
Notionals, protection sold	508,631	448,944
Non-investment grade
Credit Risk Derivatives
Fair values, receivable	5,691	6,069
Fair values, payable	5,600	6,757
Notionals, protection purchased	157,846	134,344
Notionals, protection sold	153,387	123,542
Credit default swaps and options
Credit Risk Derivatives
Fair values, receivable	8,366	9,923
Fair values, payable	8,547	10,234
Notionals, protection purchased	682,184	628,136
Notionals, protection sold	654,560	565,131
Total return swaps and other
Credit Risk Derivatives
Fair values, receivable	1,859	295
Fair values, payable	795	781
Notionals, protection purchased	15,855	17,860
Notionals, protection sold	7,458	7,355
Banks
Credit Risk Derivatives
Fair values, receivable	2,367	2,375
Fair values, payable	2,985	3,031
Notionals, protection purchased	109,040	108,415
Notionals, protection sold	109,216	103,756
Broker-dealers
Credit Risk Derivatives
Fair values, receivable	2,135	1,962
Fair values, payable	1,415	1,139
Notionals, protection purchased	46,379	44,364
Notionals, protection sold	42,384	40,068
Non-financial
Credit Risk Derivatives
Fair values, receivable	64	113
Fair values, payable	8	306
Notionals, protection purchased	2,147	2,785
Notionals, protection sold	1,888	2,728
Insurance and other financial institutions
Credit Risk Derivatives
Fair values, receivable	5,659	5,768
Fair values, payable	4,934	6,539
Notionals, protection purchased	540,473	490,432
Notionals, protection sold	508,530	425,934
Interest rate swaps
Credit Risk Derivatives
Cash proceeds received for assets derecognized	700	2,900
Fair value of derecognized assets	700	2,900
Fair value gross derivative assets	22	13
Trading derivatives, liability	$ 30	$ 58