Consolidated Statements of Operations (Unaudited) - NPC - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Operating revenue	$ 6,229	$ 6,612	$ 12,575	$ 12,642
Operating expenses:
Cost of sales	1,566	1,525	3,521	2,985
Total operating expenses	5,183	5,405	10,862	10,199
Operating income	1,046	1,207	1,713	2,443
Other income (expense):
Interest expense	(599)	(550)	(1,185)	(1,082)
Capitalized interest	33	18	57	35
Allowance for equity funds	61	42	110	80
Interest and dividend income	127	30	213	53
Other, net	78	(26)	118	(21)
Total other income (expense)	3	2,042	315	336
Income (loss) before income tax expense (benefit) and equity income (loss)	1,049	3,249	2,028	2,779
Income tax expense (benefit)	(255)	149	(417)	(358)
Net income (loss) attributable to parent	1,075	2,897	2,064	2,768
NPC
Operating revenue	781	639	1,380	1,054
Operating expenses:
Cost of sales	493	336	877	548
Operations and maintenance	78	75	151	140
Depreciation and amortization	108	103	214	206
Property and other taxes	14	12	28	25
Total operating expenses	693	526	1,270	919
Operating income	88	113	110	135
Other income (expense):
Interest expense	(49)	(39)	(98)	(77)
Capitalized interest	7	2	9	3
Allowance for equity funds	4	2	8	5
Interest and dividend income	19	9	41	18
Other, net	4	(1)	8	0
Total other income (expense)	(15)	(27)	(32)	(51)
Income (loss) before income tax expense (benefit) and equity income (loss)	73	86	78	84
Income tax expense (benefit)	7	10	8	10
Net income (loss) attributable to parent	$ 66	$ 76	$ 70	$ 74