Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Current Assets
Cash and cash equivalents	$ 33	$ 36
Accounts receivable and unbilled revenues, net	1,264	1,142
Accounts receivable from affiliates	7	6
Derivative assets	13	16
Fuel and gas in storage	62	109
Materials and supplies	132	126
Prepayments and other current assets	255	229
Regulatory assets	232	299
Total Current Assets	1,998	1,963
Total Property, Plant and Equipment ($715 and $726 related to VIEs, respectively)	23,555	23,459
Operating lease right-of-use assets	81	0
Equity method investments	481	366
Other investments	57	58
Regulatory assets	2,612	2,640
Deferred income taxes regulatory	0	6
Other Assets
Goodwill	3,127	3,127
Intangible assets	321	323
Derivative assets	69	63
Other	307	162
Total Other Assets	3,824	3,675
Total Assets	32,608	32,167
Current Liabilities
Current portion of debt	325	394
Notes payable	798	587
Interest accrued	70	62
Accounts payable and accrued liabilities	1,084	1,132
Accounts payable to affiliates	35	58
Dividends payable	137	136
Taxes accrued	68	59
Operating lease liabilities	10	0
Derivative liabilities	64	44
Other current liabilities	304	327
Regulatory liabilities	258	205
Total Current Liabilities	3,153	3,004
Regulatory liabilities	3,253	3,223
Other Non-current Liabilities
Deferred income taxes	1,524	1,530
Deferred income	1,368	1,385
Pension and other postretirement	1,115	1,102
Operating lease liabilities	73	0
Derivative liabilities	99	97
Asset retirement obligations	220	217
Environmental remediation costs	330	339
Other	530	499
Total Other Non-current Liabilities	5,259	5,169
Non-current debt	5,487	5,368
Total Non-current Liabilities	13,999	13,760
Total Liabilities	17,152	16,764
Commitments and Contingencies
Stockholders’ Equity:
Common stock, $.01 par value, 500,000,000 shares authorized, 309,752,140 shares issued; 309,005,272 shares outstanding, respectively	3	3
Additional paid in capital	13,658	13,657
Treasury stock	(12)	(12)
Retained earnings	1,620	1,528
Accumulated other comprehensive loss	(111)	(72)
Total Stockholders’ Equity	15,158	15,104
Non-controlling interests	298	299
Total Equity	15,456	15,403
Total Liabilities and Equity	$ 32,608	$ 32,167