CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net Income	$ 445,326	$ 368,023
Other Comprehensive Income (Loss), Net of Tax:
Qualified Cash Flow Hedging Instruments	5	407
Changes in Unrealized Losses on Marketable Securities	(817)	(736)
Changes in Funded Status of Pension, SERP and PBOP Benefit Plans	1,516	1,517
Net OCI	704	1,188
Comprehensive Income Attributable to Noncontrolling Interests	(1,880)	(1,880)
Comprehensive Income Attributable to Common Shareholders	$ 444,150	$ 367,331

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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- Definition

Amount after tax and reclassification adjustments of other comprehensive income (loss).

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