Regulatory Matters (Details) - CAD ($) $ in Millions |
1 Months Ended | ||
|---|---|---|---|
Feb. 28, 2026 |
Jun. 30, 2026 |
Dec. 31, 2025 |
|
| Public Utilities, General Disclosures [Line Items] | |||
| Regulatory liability | $ 4,458 | $ 4,262 | |
| Depreciation Rates | |||
| Public Utilities, General Disclosures [Line Items] | |||
| Regulatory liability | $ 130 | ||
| General Rate Application | ACC | UNS Gas Inc. | |||
| Public Utilities, General Disclosures [Line Items] | |||
| Approved ROE | 9.61% | ||
| Approved equity component of capital structure | 56.00% | ||
| Approved return on equity, allowable range | 0.0050 |