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ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) - Schedule of Amounts Reclassified From AOCI By Component (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Tax Effect $ (424,664) $ (159,684) $ (453,574)
Other Income, Net 410,482 348,069 346,088
Net Income/(Loss) Attributable to Common Shareholders 811,653 (442,240) 1,404,875
Reclassification out of Accumulated Other Comprehensive Income      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Net Income/(Loss) Attributable to Common Shareholders (9,700) (14,500) (7,000)
Unrealized Losses on Marketable Securities | Reclassification out of Accumulated Other Comprehensive Income      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Tax Effect 0 400 0
Other Income, Net 0 (1,600) 0
Net Income/(Loss) Attributable to Common Shareholders 0 (1,200) 0
Defined Benefit Plans | Reclassification out of Accumulated Other Comprehensive Income      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Tax Effect 1,700 6,400 2,300
Total pre-tax amount (11,400) (19,700) (9,300)
Net Income/(Loss) Attributable to Common Shareholders (9,700) (13,300) (7,000)
Amortization of Actuarial Losses | Reclassification out of Accumulated Other Comprehensive Income      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Income, Net (6,800) (7,000) (9,000)
Amortization of Prior Service Cost | Reclassification out of Accumulated Other Comprehensive Income      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Income, Net (300) (300) (300)
Settlement Losses | Reclassification out of Accumulated Other Comprehensive Income      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Income, Net $ (4,300) $ (12,400) $ 0