STOCK-BASED COMPENSATION Schedule of Stock-Based Compensation Expense Related to Income Tax Benefits (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Income tax benefits related to stock-based compensation	$ 0	$ (1)	$ 17	$ 33
Selling, General and Administrative Expenses [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense (selling and administrative)	$ 5	$ 36	$ 31	$ 63