LEASES - Supplemental Lease Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)
Leases [Abstract]
Weighted-average remaining operating lease term	6 years
Weighted-average discount rate for operating leases	3.10%
Operating cash flows from operating leases	$ 87
Leased assets obtained in exchange for new operating lease liabilities	$ 50