Consolidated Statements of Cash Flows (Unaudited) - PAC - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities:
Net income (loss)	$ 2,285	$ 1,786
Adjustments to reconcile net income to net cash flows from operating activities:
Allowance for equity funds	(56)	(72)
Changes in regulatory assets and liabilities	(199)	(7)
Deferred income taxes and amortization of investment tax credits	613	288
Other, net	(26)	18
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	(254)	(783)
Derivative collateral, net	92	16
Accrued property, income and other taxes, net	76	(605)
Accounts payable and other liabilities	187	240
Net cash flows from operating activities	4,232	1,854
Cash flows from investing activities:
Capital expenditures	(2,848)	(2,793)
Other, net	(53)	58
Net cash flows from investing activities	(2,975)	(3,838)
Cash flows from financing activities:
Net proceeds from (repayments of) short-term debt	245	(920)
Other, net	(28)	(39)
Net cash flows from financing activities	(1,204)	2,798
Net change in cash and cash equivalents and restricted cash and cash equivalents	55	802
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	1,445	1,268
Cash and cash equivalents and restricted cash and cash equivalents at end of period	1,500	2,070
PAC
Cash flows from operating activities:
Net income (loss)	394	342
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	539	462
Allowance for equity funds	(25)	(44)
Changes in regulatory assets and liabilities	(98)	(12)
Deferred income taxes and amortization of investment tax credits	22	(24)
Other, net	(1)	1
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	(10)	46
Inventories	8	(80)
Derivative collateral, net	35	7
Prepaid expenses	12	(1)
Accrued property, income and other taxes, net	79	38
Accounts payable and other liabilities	91	35
Net cash flows from operating activities	1,046	770
Cash flows from investing activities:
Capital expenditures	(819)	(973)
Other, net	0	29
Net cash flows from investing activities	(819)	(944)
Cash flows from financing activities:
Proceeds from long-term debt	0	987
Repayments of long-term debt	(400)	0
Net proceeds from (repayments of) short-term debt	208	(130)
Other, net	(4)	0
Net cash flows from financing activities	(196)	857
Net change in cash and cash equivalents and restricted cash and cash equivalents	31	683
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	19	36
Cash and cash equivalents and restricted cash and cash equivalents at end of period	$ 50	$ 719