OTHER COMPREHENSIVE INCOME (Amounts Reclassified from Accumulated Other Comprehensive Income to Earnings) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	$ (33,118)	$ (30,773)
Other nonoperating expense	5,913	(9,336)
Benefit from income taxes	60,638	12,194
Total	160,614	60,258
Reclassification From AOCI [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	1,591	2,489
Reclassification Adjustment for Cash Flow Hedges [Member] | Reclassification From AOCI [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	482	1,074
Benefit from income taxes	(126)	(280)
Total	356	794
Amortization of Pension and Postretirement Plan Actuarial Loss and Prior Service Cost [Member] | Reclassification From AOCI [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other nonoperating expense	1,671	2,294
Benefit from income taxes	(436)	(599)
Total	$ 1,235	$ 1,695