LEASES Lease Cost (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Leases [Abstract]
Operating Lease, Cost	$ 28	$ 55
Variable Lease, Cost	4	10
Short-term Lease, Cost	5	10
Sublease Income	(2)	(2)
Lease, Cost	$ 35	$ 73