Annual report pursuant to Section 13 and 15(d)

GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details)

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GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details)
$ in Millions
3 Months Ended 12 Months Ended
Oct. 01, 2018
USD ($)
Dec. 31, 2019
USD ($)
segments
Dec. 31, 2019
USD ($)
segments
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Business Acquisition [Line Items]          
Goodwill, Other Increase (Decrease)     $ 1 $ (5)  
Number of Reportable Segments | segments   4 4    
Goodwill   $ 1,990 $ 1,990 1,989 $ 1,993
Other intangible assets   $ 232 232 281  
Goodwill acquired during the period     0 $ 1  
Impairment of goodwill     $ 0    
Hutchinson, Shockey, Erley & Co [Member]          
Business Acquisition [Line Items]          
Goodwill acquired during the period $ 1