CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Net income	$ 554	$ 420
PRINCIPAL NON-CASH CHARGES/(CREDITS) TO INCOME
Depreciation and amortization	529	497
Investment loss/impairment	0	172
Deferred income taxes	167	77
Rate case amortization and accruals	18	(7)
Common equity component of allowance for funds used during construction	(5)	(5)
Net derivative losses/(gains)	(68)	(65)
Unbilled revenue and net unbilled revenue deferrals	45	31
Other non-cash items, net	34	6
CHANGES IN ASSETS AND LIABILITIES
Accounts receivable – customers	(252)	(281)
Allowance for uncollectible accounts – customers	19	33
Materials and supplies, including fuel oil and gas in storage	33	17
Revenue decoupling mechanism receivable	(28)	(42)
Other receivables and other current assets	(198)	43
Taxes receivable	4	15
Prepayments	(471)	(500)
Accounts payable	(156)	(178)
Pensions and retiree benefits obligations, net	50	73
Pensions and retiree benefits contributions	(5)	(4)
Accrued taxes	(27)	(35)
Accrued interest	129	116
Superfund and environmental remediation costs	(7)	(5)
Distributions from equity investments	4	10
System benefit charge	(21)	(20)
Deferred charges, noncurrent assets and other regulatory assets	(214)	(42)
Deferred credits and other regulatory liabilities	440	50
Other current and noncurrent liabilities	(101)	(87)
NET CASH FLOWS FROM OPERATING ACTIVITIES	473	289
INVESTING ACTIVITIES
Utility construction expenditures	(837)	(868)
Cost of removal less salvage	(80)	(86)
Non-utility construction expenditures	(25)	(141)
Investments in electric and gas transmission projects	(10)	(5)
Other investing activities	0	4
NET CASH FLOWS USED IN INVESTING ACTIVITIES	(952)	(1,096)
FINANCING ACTIVITIES
Net issuance (repayment) of short-term debt	(175)	183
Issuance of long-term debt	0	250
Retirement of long-term debt	(26)	(695)
Debt issuance costs	(1)	(3)
Common stock dividends	(276)	(253)
Issuance of common shares for stock plans	14	16
Distribution to noncontrolling interest	(6)	(3)
Sale of equity interest	0	33
NET CASH FLOWS USED IN FINANCING ACTIVITIES	(470)	(472)
CASH, TEMPORARY CASH INVESTMENTS, AND RESTRICTED CASH:
NET CHANGE FOR THE PERIOD	(949)	(1,279)
BALANCE AT BEGINNING OF PERIOD	1,146	1,436
BALANCE AT END OF PERIOD	197	157
Cash paid/(received) during the period for:
Interest	104	112
Income taxes	(1)	(15)
SUPPLEMENTAL DISCLOSURE OF NON-CASH INFORMATION
Construction expenditures in accounts payable	424	390
Issuance of common shares for dividend reinvestment	4	12
Software Licenses
SUPPLEMENTAL DISCLOSURE OF NON-CASH INFORMATION
Capital expenditures incurred but unpaid as of end of period	23	51
Equipment
SUPPLEMENTAL DISCLOSURE OF NON-CASH INFORMATION
Capital expenditures incurred but unpaid as of end of period	$ 22	$ 28