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Long-term Financing and Sales of Receivables - Credit Quality of Long-Term Receivables and Allowance for Credit Losses (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Debt Instrument [Line Items] |  |
Total Long-term Receivable | $ 40 | $ 49
Financing receivables | 13 | 20
Current Billed Due |  |
Debt Instrument [Line Items] |  |
Financing receivables | 1 | 1
Past Due Under 90 Days |  |
Debt Instrument [Line Items] |  |
Financing receivables | 1 | 0
Past Due Over 90 Days |  |
Debt Instrument [Line Items] |  |
Financing receivables | 3 | 2
Municipal leases secured tax exempt |  |
Debt Instrument [Line Items] |  |
Total Long-term Receivable | 22 | 28
Municipal leases secured tax exempt | Current Billed Due |  |
Debt Instrument [Line Items] |  |
Financing receivables | 1 | 0
Municipal leases secured tax exempt | Past Due Under 90 Days |  |
Debt Instrument [Line Items] |  |
Financing receivables | 1 | 0
Municipal leases secured tax exempt | Past Due Over 90 Days |  |
Debt Instrument [Line Items] |  |
Financing receivables | 1 | 0
Commercial loans and leases secured |  |
Debt Instrument [Line Items] |  |
Total Long-term Receivable | 18 | 21
Commercial loans and leases secured | Current Billed Due |  |
Debt Instrument [Line Items] |  |
Financing receivables | 0 | 1
Commercial loans and leases secured | Past Due Under 90 Days |  |
Debt Instrument [Line Items] |  |
Financing receivables | 0 | 0
Commercial loans and leases secured | Past Due Over 90 Days |  |
Debt Instrument [Line Items] |  |
Financing receivables | $ 2 | $ 2

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