SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Lease Expense) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Accounting Policies [Abstract]
Operating lease fixed cost	$ 266	$ 502
Operating lease variable cost	669	1,468
Total operating lease costs	$ 935	$ 1,970