Statement of Cash Flows, Supplemental Disclosures	9 Months Ended
Jun. 30, 2025
Supplemental Cash Flow Elements [Abstract]
Cash Flow, Supplemental Disclosures	Supplemental Cash Flow Information Construction in progress and nuclear fuel expenditures included in Accounts payable and accrued liabilities at June 30, 2025 and 2024, were $961 million and $703 million, respectively, and are excluded from the Consolidated Statements of Cash Flows for the nine months ended June 30, 2025 and 2024 as non-cash investing activities. ARO project accruals included in Accounts payable and accrued liabilities at June 30, 2025 and 2024, were $41 million and $46 million, respectively, and are excluded from the Consolidated Statements of Cash Flows for the nine months ended June 30, 2025 and 2024, as non-cash operating activities. Cash flows from swap contracts that are accounted for as hedges are classified in the same category as the item being hedged or on a basis consistent with the nature of the instrument.

Statement of Cash Flows, Supplemental Disclosures

9 Months Ended

Jun. 30, 2025

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Information

Construction in progress and nuclear fuel expenditures included in Accounts payable and accrued liabilities at June 30, 2025 and 2024, were $961 million and $703 million, respectively, and are excluded from the Consolidated Statements of Cash Flows for the nine months ended June 30, 2025 and 2024 as non-cash investing activities. ARO project accruals included in Accounts payable and accrued liabilities at June 30, 2025 and 2024, were $41 million and $46 million, respectively, and are excluded from the Consolidated Statements of Cash Flows for the nine months ended June 30, 2025 and 2024, as non-cash operating activities.

Cash flows from swap contracts that are accounted for as hedges are classified in the same category as the item being

hedged or on a basis consistent with the nature of the instrument.