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Accounts Receivable, Net Accounts Receivable, Net (Details) - USD ($) $ in Millions | Sep. 30, 2020 | Sep. 30, 2019
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Power receivables |  | $ 1,401 | $ 1,624
Other receivables |  | 128 | 115
Allowance for uncollectible accounts | [1] | (1) |
Accounts receivable, net |  | 1,529 | $ 1,739
Available Credit on Public Power Support and Stabilization Program |  | 1,000 |
Subsequent Credit on Public Power Support and Stabilization Program |  | $ 1 |
[1] | Allowance for uncollectible accounts was less than $1 million at September 30, 2020 and 2019, and therefore is not represented in the table above.

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