ACCOUNTS RECEIVABLE AND OTHER FINANCIAL ASSETS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Prepaid expense, allowance for credit loss	$ 54		$ 6
Contract With Customer, Reduction To Revenue, Cancellation Refunds	63
Accounts receivable, net (Allowance for credit losses of $245 and $49, respectively)	667
Accounts Receivable, after Allowance for Credit Loss [Abstract]
Accounts Receivable, Allowance for Credit Loss	49	$ 51
Provision for expected credit losses and chargebacks	199	17
Accounts Receivable, Allowance for Credit Loss, Writeoff	(1)	(18)
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)	(2)	(1)
Accounts Receivable, Allowance for Credit Loss	245	$ 49
Trade Accounts Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, net (Allowance for credit losses of $245 and $49, respectively)	740		1,200
Marketing Receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, net (Allowance for credit losses of $245 and $49, respectively)	61		110
COVID-19 [Member]
Accounts Receivable, after Allowance for Credit Loss [Abstract]
Provision for expected credit losses and chargebacks	183
Prepaid expenses and other current assets, net
Accounts, Notes, Loans and Financing Receivable [Line Items]
Prepaid expense, allowance for credit loss	5		6
Prepaid Expense	104		232
Other assets, net
Accounts, Notes, Loans and Financing Receivable [Line Items]
Prepaid expense, allowance for credit loss	49		$ 0
Prepaid Expense	126
Contract With Customer, Reduction To Revenue, Cancellation Refunds [Member]
Accounts Receivable, after Allowance for Credit Loss [Abstract]
Provision for expected credit losses and chargebacks	$ 48