OTHER ITEMS IMPACTING COMPARABILITY - Schedule of Other Items Impacting Comparability (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Restructuring Cost and Reserve [Line Items]
FMS Europe results	$ 4	$ 0	$ 7	$ 0
Gain on sale		(15)	(2)	(43)
Commercial claims proceeds, net of fees	0	(5)	(31)	7
Severance and other, net	0	3	3	12
FMS U.K. exit	4	(27)	(32)	(58)
Currency translation adjustment loss	0	0	188	0
Other, net	0	(1)	(1)	3
Other items impacting comparability	4	(28)	155	(55)
U.K. | Trading Revenue
Restructuring Cost and Reserve [Line Items]
Gain on sale	0	(15)	(2)	(43)
U.K. | Miscellaneous (Income) Loss, Net
Restructuring Cost and Reserve [Line Items]
Gain on sale	$ 0	$ (10)	$ (9)	$ (34)