Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 122	$ 127
Accounts receivable, net	122	149
Unbilled revenues	87	93
Inventories	101	82
Regulatory assets - current	117	133
Other current assets	97	115
Total current assets	646	699
Electric utility plant, net	5,874	5,679
Regulatory assets - noncurrent	552	494
Nuclear decommissioning trust	40	90
Non-qualified benefit plan trust	35	32
Other noncurrent assets	51	48
Total assets	7,198	7,042
Current liabilities
Accounts payable	125	156
Liabilities from price risk mangement activities - current	101	106
Current portion of long-term debt	55	375
Accrued expenses and other current liabilities	228	236
Total current liabilities	509	873
Long-term debt, net of current portion	2,204	2,126
Regulatory liabilities - noncurrent	923	906
Deferred income taxes	648	625
Unfunded status of pension and postretirement plans	243	237
Liabilities from price risk mangement activities - noncurrent	187	122
Asset retirement obligations	135	116
Non-qualified benefit plan liabilities	105	105
Other noncurrent liabilities	23	21
Total liabilities	$ 4,977	$ 5,131
Commitments and contingencies (see notes)
Equity:
Preferred stock, no par value, 30,000,000 shares authorized; none issued and outstanding as of June 30, 2015 and December 31, 2014	$ 0	$ 0
Common stock, no par value, 160,000,000 shares authorized; 88.765,629 and 78,228,339 shares issued and outstanding as of June 30, 2015 and December 31, 2014, respectively	1,191	918
Accumulated other comprehensive loss	(7)	(7)
Retained earnings	1,037	1,000
Total equity	2,221	1,911
Total liabilities and equity	$ 7,198	$ 7,042

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.