Consolidated Statements of Cash Flows (Unaudited) - NPC - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net income (loss)	$ 2,768	$ 2,285
Adjustments to reconcile net income to net cash flows from operating activities:
Allowance for equity funds	(80)	(56)
Changes in regulatory assets and liabilities	(226)	(199)
Deferred income taxes and investment tax credits, net	385	613
Other, net	37	(26)
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	(317)	(254)
Accrued property, income and other taxes, net	489	76
Accounts payable and other liabilities	682	187
Net cash flows from operating activities	5,147	4,232
Cash flows from investing activities:
Capital expenditures	(3,382)	(2,848)
Net cash flows from investing activities	(3,452)	(2,975)
Cash flows from financing activities:
Net (repayments of) proceeds from short-term debt	(54)	245
Other, net	(248)	(19)
Net cash flows from financing activities	(605)	(1,204)
Net change in cash and cash equivalents and restricted cash and cash equivalents	1,057	55
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	1,244	1,445
Cash and cash equivalents and restricted cash and cash equivalents at end of period	2,301	1,500
NPC
Cash flows from operating activities:
Net income (loss)	74	84
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	206	201
Allowance for equity funds	(5)	(3)
Changes in regulatory assets and liabilities	(14)	(17)
Deferred income taxes and investment tax credits, net	12	(20)
Deferred energy	(159)	(1)
Amortization of deferred energy	46	7
Other, net	10	0
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	(154)	(83)
Inventories	(4)	5
Accrued property, income and other taxes, net	18	21
Accounts payable and other liabilities	194	116
Net cash flows from operating activities	224	310
Cash flows from investing activities:
Capital expenditures	(350)	(237)
Net cash flows from investing activities	(350)	(237)
Cash flows from financing activities:
Proceeds from long-term debt	300	0
Net (repayments of) proceeds from short-term debt	(180)	0
Contributions from parent	25	0
Dividends paid	0	(13)
Other, net	(9)	(8)
Net cash flows from financing activities	136	(21)
Net change in cash and cash equivalents and restricted cash and cash equivalents	10	52
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	45	36
Cash and cash equivalents and restricted cash and cash equivalents at end of period	$ 55	$ 88