TRANSFORMATION STRATEGY (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Restructuring and Related Activities [Abstract]
Compensation and benefits	$ 12	$ 106
Total other expenses	33	17
Total Transformation Strategy Costs	45	123
Income Tax Benefit from Transformation Strategy Costs	(10)	(30)
After Tax Transformation Strategy Costs	$ 35	$ 93

Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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