Accumulated Other Comprehensive Income (Loss) (AOCI balances) (Details 2) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
As of	$ 3,752,661	$ 4,411,669
Other Comprehensive Income (Loss), Net of Tax	585	(13,135)
As of	3,769,730	4,472,941
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
As of	336,151
Other comprehensive income (loss) before reclassifications	8,452
Net amount reclassified from accumulated other comprehensive income	(7,867)
Other Comprehensive Income (Loss), Net of Tax	585
As of	336,736
Cumulative Foreign Currency Translation Adjustment [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
As of	(54,638)
Other comprehensive income (loss) before reclassifications	8,994
Net amount reclassified from accumulated other comprehensive income	0
Other Comprehensive Income (Loss), Net of Tax	8,994	(1,738)
As of	(45,644)
Unrealized Gain on Pensions and Other Postretirement Plans [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
As of	388,591
Other comprehensive income (loss) before reclassifications	0
Net amount reclassified from accumulated other comprehensive income	(7,693)	(12,661)
Other Comprehensive Income (Loss), Net of Tax	(7,693)	(12,661)
As of	380,898
Cash Flow Hedges [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
As of	2,198
Other comprehensive income (loss) before reclassifications	(542)
Net amount reclassified from accumulated other comprehensive income	(174)
Other Comprehensive Income (Loss), Net of Tax	(716)	$ 1,264
As of	$ 1,482