Leases - SPPC - Schedule of Lease Maturity (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Operating
2023	$ 158
2024	126
2025	101
2026	78
2027	53
Thereafter	189
Total undiscounted lease payments	705
Less - amounts representing interest	(100)
Operating leases	605	$ 577
Finance
2023	63
2024	62
2025	61
2026	60
2027	56
Thereafter	559
Total undiscounted lease payments	861
Less - amounts representing interest	(429)
Finance leases	432	463
Total
2023	221
2024	188
2025	162
2026	138
2027	109
Thereafter	748
Total undiscounted lease payments	1,566
Less - amounts representing interest	(529)
Total lease liabilities	1,037	1,040
SPPC
Operating
2023	1
2024	1
2025	1
2026	1
2027	1
Thereafter	23
Total undiscounted lease payments	28
Less - amounts representing interest	(13)
Operating leases	15	15
Finance
2023	16
2024	15
2025	16
2026	15
2027	13
Thereafter	137
Total undiscounted lease payments	212
Less - amounts representing interest	(104)
Finance leases	108	115
Total
2023	17
2024	16
2025	17
2026	16
2027	14
Thereafter	160
Total undiscounted lease payments	240
Less - amounts representing interest	(117)
Total lease liabilities	$ 123	$ 130

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-SubTopic 20
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