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v3.22.2.2

Revenue Recognition Revenue Recognition (Allowance for Credit Losses) (Details) - USD ($) $ in Millions | 9 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Accounts Receivable Allowance For Credit Loss [Line Items] |  |  |
Accounts Receivable, Allowance for Credit Loss | $ 19.2 | $ 23.5 | $ 52.3
Current period provisions | 29.6 | 7.2 |
Write-offs charged against allowance | 44.7 | 54.4 |
Recoveries of amounts previously written off | 10.8 | 18.4 |
Gas Distribution Operations |  |  |
Accounts Receivable Allowance For Credit Loss [Line Items] |  |  |
Accounts Receivable, Allowance for Credit Loss | 12.6 | 18.9 | 41.8
Current period provisions | 24.1 | 5.8 |
Write-offs charged against allowance | 40.9 | 46.7 |
Recoveries of amounts previously written off | 10.5 | 18.0 |
Electric Operations |  |  |
Accounts Receivable Allowance For Credit Loss [Line Items] |  |  |
Accounts Receivable, Allowance for Credit Loss | 5.8 | 3.8 | 9.7
Current period provisions | 5.5 | 1.4 |
Write-offs charged against allowance | 3.8 | 7.7 |
Recoveries of amounts previously written off | 0.3 | 0.4 |
Corporate and Other |  |  |
Accounts Receivable Allowance For Credit Loss [Line Items] |  |  |
Accounts Receivable, Allowance for Credit Loss | 0.8 | 0.8 | $ 0.8
Current period provisions | 0.0 | 0.0 |
Write-offs charged against allowance | 0.0 | 0.0 |
Recoveries of amounts previously written off | $ 0.0 | $ 0.0 |

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