Consolidated Statements of Cash Flows (Unaudited) - SPPC - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash flows from operating activities:
Net income (loss)	$ 1,926	$ 4,207
Adjustments to reconcile net income to net cash flows from operating activities:
Allowance for equity funds	(123)	(90)
Changes in regulatory assets and liabilities	(843)	(518)
Deferred income taxes and investment tax credits, net	(350)	661
Other, net	53	(88)
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	(246)	(13)
Accrued property, income and other taxes, net	501	(29)
Accounts payable and other liabilities	1,125	427
Net cash flows from operating activities	7,939	6,984
Cash flows from investing activities:
Capital expenditures	(5,385)	(4,594)
Net cash flows from investing activities	(5,469)	(3,528)
Cash flows from financing activities:
Net repayments of short-term debt	(540)	(316)
Other, net	(273)	(44)
Net cash flows from financing activities	(1,605)	(1,960)
Net change in cash and cash equivalents and restricted cash and cash equivalents	814	1,497
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	2,058	2,942
SPPC
Cash flows from operating activities:
Net income (loss)	100	107
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	110	107
Allowance for equity funds	(5)	(5)
Changes in regulatory assets and liabilities	(9)	(30)
Deferred income taxes and investment tax credits, net	22	10
Deferred energy	(203)	(95)
Amortization of deferred energy	66	12
Other, net	3	(1)
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	(32)	(25)
Inventories	(11)	9
Accrued property, income and other taxes, net	(9)	3
Accounts payable and other liabilities	74	21
Net cash flows from operating activities	106	113
Cash flows from investing activities:
Capital expenditures	(278)	(196)
Net cash flows from investing activities	(278)	(196)
Cash flows from financing activities:
Proceeds from long-term debt	248	0
Repayments of long-term debt	(265)	0
Net repayments of short-term debt	(39)	82
Dividends paid	(70)	0
Proceeds from equity contributions	340	0
Other, net	(5)	(5)
Net cash flows from financing activities	209	77
Net change in cash and cash equivalents and restricted cash and cash equivalents	37	(6)
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	16	26
Cash and cash equivalents and restricted cash and cash equivalents at end of period	$ 53	$ 20