LEASE COMMITMENTS - OTHER INFORMATION (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Aug. 08, 2019
Lessee, Lease, Description [Line Items]
Operating lease costs	$ 449
Amortization of ROU assets	19
Interest on lease liabilities	2
Total lease cost	953
Short-term lease cost	404
Variable lease cost	162
Operating cash flows	262
Investing cash flows	112
Financing cash flows (a)	19
Finance lease	398	$ 86
Failed Sale-Leaseback
Lessee, Lease, Description [Line Items]
Finance lease	300
Operating expense and cost of sales
Lessee, Lease, Description [Line Items]
Operating lease costs	391
Selling, general and administrative expenses
Lessee, Lease, Description [Line Items]
Operating lease costs	$ 92