CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net Income	$ 523,728	$ 493,039
Other Comprehensive Income, Net of Tax:
Qualified Cash Flow Hedging Instruments	5	5
Changes in Unrealized Gains on Marketable Securities	0	1,254
Changes in Funded Status of Pension, SERP and PBOP Benefit Plans	5,198	1,971
Other Comprehensive Income, Net of Tax	5,203	3,230
Comprehensive Income Attributable to Noncontrolling Interests	(1,880)	(1,880)
Comprehensive Income Attributable to Common Shareholders	$ 527,051	$ 494,389