v3.25.2
Accumulated Other Comprehensive Income (Loss) (AOCI balances) (Details 2) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2024
Mar. 31, 2024
Jun. 30, 2025
Jun. 30, 2024
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
As of $ 4,325,765 $ 4,286,815 $ 4,070,482 $ 4,001,868 $ 4,286,815 $ 4,001,868
Other Comprehensive Income (Loss), Net of Tax 31,990 13,096 (5,315) (22,492) 45,086 (27,807)
As of 4,384,554 4,325,765 3,995,520 $ 4,070,482 4,384,554 3,995,520
AOCI Including Portion Attributable to Noncontrolling Interest [Member]            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
As of   334,797     334,797  
Other comprehensive income (loss) before reclassifications         45,657  
Net amount reclassified from accumulated other comprehensive income (loss)         (571)  
Other Comprehensive Income (Loss), Net of Tax         45,086  
As of 379,883       379,883  
Cumulative Foreign Currency Translation Adjustment [Member]            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
As of   (58,044)     (58,044)  
Other comprehensive income (loss) before reclassifications 32,283   3,517   46,550 (9,767)
Net amount reclassified from accumulated other comprehensive income (loss) 646   0   646 0
Other Comprehensive Income (Loss), Net of Tax 32,929   3,517   47,196 (9,767)
As of (10,848)       (10,848)  
Unrealized Gain on Pensions and Other Postretirement Plans [Member]            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
As of   393,949     393,949  
Other comprehensive income (loss) before reclassifications         0  
Net amount reclassified from accumulated other comprehensive income (loss) (670)   (9,087)   (1,338) (19,117)
Other Comprehensive Income (Loss), Net of Tax (670)   (9,087)   (1,338) (19,117)
As of 392,611       392,611  
Cash Flow Hedges [Member]            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
As of   $ (1,108)     (1,108)  
Other comprehensive income (loss) before reclassifications         (893)  
Net amount reclassified from accumulated other comprehensive income (loss)         121  
Other Comprehensive Income (Loss), Net of Tax (269)   $ 255   (772) $ 1,077
As of $ (1,880)       $ (1,880)