GOODWILL AND OTHER INTANGIBLE ASSETS Intangible assets included in Other assets and intangibles (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Total intangible assets, gross	$ 1,163	$ 1,224
Total intangible assets, net	304	460
Finite-lived intangible assets, accumulated amortization	859	764
Total	242
Customer lists and relationships [Member]
Finite-lived intangible assets, gross	401	410
Finite-lived intangible assets, accumulated amortization	301	204
Total	100	206
Trademarks, trade names and other [Member]
Finite-lived intangible assets, gross	36	24
Finite-lived intangible assets, accumulated amortization	20	15
Total	16	9
Non-amortized trade names and other [Member]
Finite-lived intangible assets, gross	100	133
Finite-lived intangible assets, accumulated amortization	38	34
Indefinite-lived intangible assets, carrying amount	62	99
Capitalized software [Member]
Finite-lived intangible assets, gross	626	657
Finite-lived intangible assets, accumulated amortization	500	511
Total	$ 126	$ 146
Weighted average [Member]
Finite-lived intangible assets, useful life	8 years 2 months 12 days
Weighted average [Member] | Customer lists and relationships [Member]
Finite-lived intangible assets, useful life	13 years 2 months 12 days
Weighted average [Member] | Trademarks, trade names and other [Member]
Finite-lived intangible assets, useful life	14 years 1 month 6 days
Weighted average [Member] | Capitalized software [Member]
Finite-lived intangible assets, useful life	4 years 2 months 12 days