Consolidated Statements of Operations (Unaudited) - NPC - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Operating revenue	$ 6,612	$ 6,064	$ 12,642	$ 12,145
Operating expenses:
Cost of sales	1,525	1,110	2,985	2,679
Total operating expenses	5,405	4,856	10,199	9,604
Operating income	1,207	1,208	2,443	2,541
Other income (expense):
Interest expense	(550)	(532)	(1,082)	(1,062)
Allowance for borrowed funds	18	14	35	28
Allowance for equity funds	42	30	80	56
Interest and dividend income	30	26	53	47
Other, net	(26)	48	(21)	56
Total other income (expense)	2,042	1,552	336	(27)
Income (loss) before income tax expense (benefit) and equity income (loss)	3,249	2,760	2,779	2,514
Income tax expense (benefit)	149	327	(358)	(208)
Net income (loss) attributable to parent	2,897	2,281	2,768	2,285
NPC
Operating revenue	639	559	1,054	929
Operating expenses:
Cost of sales	336	252	548	417
Operations and maintenance	75	77	140	140
Depreciation and amortization	103	100	206	201
Property and other taxes	12	12	25	24
Total operating expenses	526	441	919	782
Operating income	113	118	135	147
Other income (expense):
Interest expense	(39)	(39)	(77)	(77)
Allowance for borrowed funds	2	1	3	2
Allowance for equity funds	2	2	5	3
Interest and dividend income	9	3	18	8
Other, net	(1)	6	0	10
Total other income (expense)	(27)	(27)	(51)	(54)
Income (loss) before income tax expense (benefit) and equity income (loss)	86	91	84	93
Income tax expense (benefit)	10	9	10	9
Net income (loss) attributable to parent	$ 76	$ 82	$ 74	$ 84