Summary of Significant Accounting and Reporting Policies - Noncontrolling Interests (Details) - NEER $ in Millions |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2025
USD ($)
MW
|
Dec. 31, 2024
USD ($)
|
Dec. 31, 2023
USD ($)
|
|
| Summary of Significant Accounting Policies [Line Items] | |||
| income associated with differential membership interests | $ | $ 1,578 | $ 1,329 | $ 1,135 |
| Differential Membership Interests | |||
| Summary of Significant Accounting Policies [Line Items] | |||
| Noncontrolling Interests associated with Differential Membership Interests | $ | $ (10,654) | $ (9,062) | |
| Variable Interest Entity, Primary Beneficiary [Member] | |||
| Summary of Significant Accounting Policies [Line Items] | |||
| Wind Electric Generating Facility Capability | 12,350 | ||
| Solar generating facility capability | 5,409 | ||
| Battery Storage Facility Capability [Line Items] | 2,624 | ||