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Commitments and Contingencies - Legal Proceedings (Details) $ in Millions | 12 Months Ended
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Sep. 30, 2021 USD ($) Groups Agreements
Legal Proceedings |
Possible additional future costs for compliance with CCR requirements | $ 789
Amount spent under environmental agreements | 281
Contribution related to TVARS case | 5
Possible additional future costs for compliance with Clean Water requirements. | 148
Amount remaining to be spent under environmental agreements | 10
Loss Contingency, Damages Sought, Value | 30
Compensatory damages - Kingston Case | 8
Punitive Damages - Kingston Case | 10
Down payment from Nuclear Development | 22
Compensated costs to Nuclear Development | 1
General |
Legal Proceedings |
Legal loss contingency accrual | $ 13
Environmental Agreements |
Legal Proceedings |
Number of similar environmental agreements entered into | Agreements | 2
Number of environmental agreements entered into with the EPA | Agreements | 1
Number of environmental agreements entered into with environmental advocacy groups | Groups | 3
Amount to be invested in certain environmental projects | $ 290
Other long-term liabilities | General |
Legal Proceedings |
Legal loss contingency accrual | 12
Accounts payable and accrued liabilities | General |
Legal Proceedings |
Legal loss contingency accrual | $ 1

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