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v3.22.0.1

Condensed Parent Company Financial Statements (Condensed Statements Of Income) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Operating expenses | $ 2,874 | $ 2,676 | $ 2,870
Operating income (loss) | 795 | 740 | 778
Other (income) and deductions: |  |  |
Equity earnings from consolidated subsidiaries | (62) | (61) | (53)
Interest expense | 277 | 275 | 273
Total other (income) and deductions | 195 | 173 | 142
Income before income taxes | 600 | 567 | 636
Income tax benefit | (74) | (57) | 69
Net income | 674 | 624 | 567
Parent Company [Member] |  |  |
Operating expenses | 5 | 7 | 2
Operating income (loss) | (5) | (7) | (2)
Other (income) and deductions: |  |  |
Equity earnings from consolidated subsidiaries | (664) | (625) | (562)
Interest expense | 1 | 2 | 9
Other | 1 | 4 | 7
Total other (income) and deductions | (662) | (619) | (546)
Income before income taxes | 657 | 612 | 544
Income tax benefit | (5) | (4) | (15)
Net income | $ 662 | $ 616 | $ 559

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