ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) - Schedule of Changes in AOCI By Component (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 15,039,387	$ 14,173,892	$ 15,473,158
Ending balance	16,197,271	15,039,387	14,173,892
Total
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(26,472)	(33,737)	(39,421)
OCI Before Reclassifications	500	(2,500)
Amounts Reclassified from AOCI	5,500	9,700
Other Comprehensive Income/(Loss), Net of Tax	6,000	7,200
Ending balance	(20,507)	(26,472)	(33,737)
Qualified Cash Flow Hedging Instruments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(400)	(400)
OCI Before Reclassifications	0	0
Amounts Reclassified from AOCI	0	0
Other Comprehensive Income/(Loss), Net of Tax	0	0
Ending balance	(400)	(400)	(400)
Defined Benefit Plans
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(26,100)	(33,300)
OCI Before Reclassifications	500	(2,500)
Amounts Reclassified from AOCI	5,500	9,700
Other Comprehensive Income/(Loss), Net of Tax	6,000	7,200
Ending balance	$ (20,100)	$ (26,100)	$ (33,300)