STOCK-BASED COMPENSATION Schedule of Stock-Based Compensation Expense Related to Income Tax Benefits (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Income tax benefits related to stock-based compensation	$ 1	$ (2)	$ 18	$ 31
Selling, General and Administrative Expenses [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense (selling and administrative)	$ 17	$ 31	$ 48	$ 94