Acquisitions (Details) $ in Millions	Jan. 09, 2026 USD ($) customer state	Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($)
Business Combination [Line Items]
Goodwill		$ 5,150	$ 4,849
NextEra Energy Resources | Symmetry Energy Solutions
Business Combination [Line Items]
Membership interests acquired	100.00%
Number Of Customers Served | customer	5,500
Number Of States In Which Entity Has Customers | state	34
Consideration transferred	$ 800
Working capital and other adjustments	300
Assets assumed	1,300
Assumed liabilities	600
Goodwill	400
Goodwill, Expected Tax Deductible Amount	$ 100