Long-term Financing and Sales of Receivables - Credit Quality of Long-Term Receivables and Allowance for Credit Losses (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Total Long-term Receivable	$ 36	$ 40
Financing receivables	13	13
Current Billed Due
Debt Instrument [Line Items]
Financing receivables	2	1
Past Due Under 90 Days
Debt Instrument [Line Items]
Financing receivables	1	1
Past Due Over 90 Days
Debt Instrument [Line Items]
Financing receivables	2	3
Municipal leases secured tax exempt
Debt Instrument [Line Items]
Total Long-term Receivable	15	22
Municipal leases secured tax exempt | Current Billed Due
Debt Instrument [Line Items]
Financing receivables	1	1
Municipal leases secured tax exempt | Past Due Under 90 Days
Debt Instrument [Line Items]
Financing receivables	1	1
Municipal leases secured tax exempt | Past Due Over 90 Days
Debt Instrument [Line Items]
Financing receivables	1	1
Commercial loans and leases secured
Debt Instrument [Line Items]
Total Long-term Receivable	21	18
Commercial loans and leases secured | Current Billed Due
Debt Instrument [Line Items]
Financing receivables	1	0
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	$ 1	$ 2