CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Operating activities
Net income	$ 1,362	$ 1,357
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	1,824	1,821
Nuclear fuel amortization	84	91
Deferred income taxes	(173)	(85)
Allowance for equity funds used during construction	(63)	(53)
Earnings from equity method investments	(27)	(27)
Dividends from equity method investments	26	30
Provision for bad debts	58	41
Share-based compensation expense	17	19
Changes in operating assets and liabilities:
Accounts receivable	95	(221)
Accrued unbilled revenues	375	69
Inventories	73	(272)
Other current assets	104	13
Accounts payable	(226)	152
Net regulatory assets and liabilities	771	239
Other current liabilities	183	51
Pension and other employee benefit obligations	(35)	(59)
Other, net	(95)	1
Net cash provided by operating activities	4,353	3,167
Investing activities
Capital/construction expenditures	(4,240)	(3,325)
Purchase of investment securities	(704)	(1,055)
Proceeds from the sale of investment securities	678	1,029
Other, net	(26)	30
Net cash used in investing activities	(4,292)	(3,321)
Financing activities
Repayments of short-term borrowings, net	(813)	(847)
Proceeds from issuances of long-term debt	2,631	2,164
Repayments of long-term debt, including reacquisition premiums	(651)	(600)
Proceeds from issuance of common stock	83	156
Dividends paid	(814)	(754)
Other, net	(14)	(14)
Net cash provided by financing activities	422	105
Net change in cash, cash equivalents and restricted cash	483	(49)
Cash, cash equivalents and restricted cash at beginning of period	111	166
Cash, cash equivalents and restricted cash at end of period	594	117
Supplemental disclosure of cash flow information:
Cash paid for interest (net of amounts capitalized)	(652)	(628)
Cash paid for income taxes, net	(68)	(16)
Supplemental disclosure of non-cash investing and financing transactions:
Accrued property, plant and equipment additions	409	393
Inventory transfers to property, plant and equipment	42	34
Operating lease right-of-use assets	73	17
Allowance for equity funds used during construction	63	53
Issuance of common stock for reinvested dividends and/or equity awards	$ 46	$ 40