REVENUE (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenue
Revenue recognized	$ 3,479,570	$ 3,207,638	$ 10,036,070	$ 8,775,720
Loyalty program [Member]
Revenue
Deferred revenue liability	4,500		4,500
Revenue recognized	$ 3,500	$ 3,800	$ 10,700	$ 10,800