LEASES Lease Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	$ 859	$ 704
Other Current Liabilities [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Liability	164	133
Other Noncurrent Liabilities [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Liability	$ 833	$ 672