Consolidated Statements of Operations (Unaudited) - SPPC - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Total operating revenue	$ 6,968	$ 6,193	$ 19,113	$ 15,332
Cost of sales	1,385	1,169	4,064	3,095
Total operating expenses	5,134	4,646	14,738	11,930
Operating income	1,834	1,547	4,375	3,402
Interest expense	(531)	(504)	(1,593)	(1,490)
Allowance for equity funds	34	50	90	122
Interest and dividend income	18	17	65	57
Other, net	8	36	64	61
Total other income (expense)	(159)	1,420	(186)	1,217
Income (loss) before income tax expense (benefit) and equity income (loss)	1,675	2,967	4,189	4,619
Income tax (benefit) expense	(355)	80	(563)	(111)
Net income (loss) attributable to parent	1,922	2,842	4,207	4,628
SPPC
Total operating revenue	282	235	711	652
Operations and maintenance	40	40	117	123
Depreciation and amortization	35	36	107	104
Property and other taxes	6	6	18	17
Total operating expenses	207	167	572	521
Operating income	75	68	139	131
Interest expense	(14)	(14)	(41)	(42)
Capitalized interest	1	0	2	1
Allowance for equity funds	2	1	5	3
Interest and dividend income	3	1	6	3
Other, net	3	2	9	4
Total other income (expense)	(5)	(10)	(19)	(31)
Income (loss) before income tax expense (benefit) and equity income (loss)	70	58	120	100
Income tax (benefit) expense	8	6	13	10
Net income (loss) attributable to parent	62	52	107	90
SPPC | Regulated electric
Total operating revenue	266	220	636	569
Cost of sales	120	81	295	233
SPPC | Regulated natural gas
Total operating revenue	16	15	75	83
Cost of sales	$ 6	$ 4	$ 35	$ 44