REVENUE (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue
Revenue recognized	$ 3,291,493	$ 3,479,570	$ 3,465,601	$ 3,090,899	$ 2,828,773	$ 3,207,638	$ 3,091,595	$ 2,476,487	$ 13,327,563	$ 11,604,493	$ 10,149,985
Loyalty program [Member]
Revenue
Deferred revenue liability	$ 3,400				$ 4,500				3,400	4,500
Revenue recognized									$ 13,600	$ 14,400	$ 15,600