SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) Revenue recognition - USD ($) $ in Millions			12 Months Ended
		Jan. 01, 2018	Dec. 31, 2018
Accounting Policies [Abstract]
Revenue, Remaining Performance Obligation, Amount			$ 710
Unbilled revenue		$ 6	64
Deferred revenue, primarily extended warranty		1,052	1,156
Revenue Recognized	[1]	$ 0	(361)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-10-01
Accounting Policies [Abstract]
Revenue, Remaining Performance Obligation, Amount			$ 211
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period			12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-10-01
Accounting Policies [Abstract]
Revenue, Remaining Performance Obligation, Amount			$ 499
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period			10 years

[1] (1) Relates to year-to-date revenues recognized from amounts included in deferred revenue at the beginning of the year. Revenue recognized in the period from performance obligations satisfied in previous periods was immaterial.