FINANCING (Senior Notes) (Narrative) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($) D	Dec. 31, 2020 USD ($)
Financing
Face amount of senior notes	$ 4,150,000	$ 4,150,000
Senior notes [Member]
Financing
Face amount of senior notes	$ 4,200,000
Number of days in annual interest calculation period | D	360
Minimum [Member] | Senior notes [Member]
Financing
Interest rate of senior notes	1.75%
Maximum [Member] | Senior notes [Member]
Financing
Interest rate of senior notes	4.625%