Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 632	$ 1,668
Adjustments to reconcile net income to net cash from operating activities-
Loss (gain) on disposal, net of tax (Note 3)	39	(1,239)
Depreciation and amortization, including regulatory assets, net, intangible assets and deferred debt-related costs	702	604
Deferred income taxes and investment tax credits, net	162	327
Retirement benefits, net of payments	(53)	(97)
Pension trust contributions	(500)	(1,250)
Changes in current assets and liabilities-
Receivables	217	20
Materials and supplies	(29)	28
Prepaid taxes and other	(109)	(143)
Accounts payable	(183)	50
Accrued taxes	(117)	(58)
Accrued compensation and benefits	(126)	(76)
Other current liabilities	(16)	(152)
Collateral, net	(8)	(15)
Other	14	45
Net cash provided from (used for) operating activities	625	(288)
New Financing-
Long-term debt	1,950	450
Short-term borrowings, net	0	1,364
Preferred stock issuance	0	1,616
Common stock issuance	0	850
Redemptions and Repayments-
Long-term debt	(757)	(2,251)
Make-whole premiums paid on debt redemptions	0	(89)
Preferred stock dividend payments	(6)	(42)
Common stock dividend payments	(403)	(343)
Other	(28)	(21)
Net cash provided from financing activities	756	1,534
CASH FLOWS FROM INVESTING ACTIVITIES:
Property additions	(1,228)	(1,307)
Proceeds from asset sales	12	390
Sales of investment securities held in trusts	302	475
Purchases of investment securities held in trusts	(322)	(508)
Notes receivable from affiliated companies	0	(500)
Asset removal costs	(103)	(118)
Other	3	3
Net cash used for investing activities	(1,336)	(1,565)
Net change in cash, cash equivalents, and restricted cash	45	(319)
Cash, cash equivalents, and restricted cash at beginning of period	429	643
Cash, cash equivalents, and restricted cash at end of period	474	324
SUPPLEMENTAL CASH FLOW INFORMATION:
Non-cash transaction, beneficial conversion feature (Note 4)	0	296
Non-cash transaction, deemed dividend preferred stock (Note 4)	$ 0	$ (261)