Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 89	$ 119
Accounts receivable, net	226	193
Unbilled revenues	71	96
Inventories	81	84
Regulatory assets - current	21	61
Other current assets	108	90
Total current assets	596	643
Electric utility plant, net	6,747	6,887
Regulatory assets - noncurrent	380	401
Nuclear decommissioning trust	46	42
Non-qualified benefit plan trust	37	36
Other noncurrent assets	142	101
Total assets	7,948	8,110
Current liabilities
Accounts payable	136	168
Liabilities from price risk mangement activities - current	32	55
Current portion of long-term debt	300	300
Accrued expenses and other current liabilities	263	268
Total current liabilities	731	791
Long-term debt, net of current portion	2,178	2,178
Regulatory liabilities-noncurrent	1,356	1,355
Deferred income taxes	380	369
Unfunded status of pension and postretirement plans	309	307
Liabilities from price risk management activities-noncurrent	78	101
Asset retirement obligations	198	197
Non-qualified benefit plan liabilities	103	103
Other noncurrent liabilities	67	203
Total liabilities	5,400	5,604
Commitments and contingencies (see notes)
Shareholders' Equity:
Preferred stock, no par value, 30,000,000 shares authorized; none issued and outstanding as of March 31, 2019 and December 31, 2018	0	0
Common stock, no par value, 160,000,000 shares authorized; 89,356,311 and 89,267,959 shares issued and outstanding as of March 31, 2019 and December 31, 2018, respectively	1,212	1,212
Accumulated other comprehensive loss	(8)	(7)
Retained earnings	1,344	1,301
Total shareholders' equity	2,548	2,506
Total liabilities and shareholders' equity	$ 7,948	$ 8,110