Consolidated Statements of Operations (Unaudited) - NPC - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Operating revenue	$ 6,968	$ 6,193	$ 19,113	$ 15,332
Operating expenses:
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
Other income (expense):
Interest expense	(531)	(504)	(1,593)	(1,490)
Allowance for borrowed funds	18	24	46	60
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
NPC
Operating revenue	802	808	1,731	1,706
Operating expenses:
Cost of sales	328	287	745	654
Operations and maintenance	88	139	228	295
Depreciation and amortization	103	92	304	273
Property and other taxes	12	12	36	35
Total operating expenses	531	530	1,313	1,257
Operating income	271	278	418	449
Other income (expense):
Interest expense	(38)	(40)	(115)	(122)
Allowance for borrowed funds	0	1	2	3
Allowance for equity funds	2	1	5	5
Interest and dividend income	5	3	13	8
Other, net	4	3	14	4
Total other income (expense)	(27)	(32)	(81)	(102)
Income (loss) before income tax expense (benefit) and equity income (loss)	244	246	337	347
Income tax (benefit) expense	27	52	36	74
Net income (loss) attributable to parent	$ 217	$ 194	$ 301	$ 273