Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 220	$ 126
Accounts receivable, net	243	227
Inventories	88	73
Regulatory assets	57	81
Deferred income taxes	145	152
Other current assets	32	39
Total current assets	785	698
Property, plant and equipment, net	7,003	6,992
Regulatory assets	1,069	1,057
Other assets	78	88
Total assets	8,935	8,835
Current liabilities:
Accounts payable	212	240
Accrued interest	60	61
Accrued property, income and other taxes	30	29
Regulatory liabilities	40	74
Long-term Debt and Capital and Financial Lease Obligations, Current	264	22
Customer Deposits, Current	55	58
Other current liabilities	36	22
Total current liabilities	697	506
Long-term Debt and Capital and Financial Lease Obligations	3,312	3,555
Regulatory liabilities	326	312
Deferred income taxes	1,414	1,298
Other long-term liabilities	298	274
Total liabilities	6,047	5,945
Shareholder's equity:
Common stock - $1.00 stated value, 1,000 shares authorized, issued and outstanding	0	0
Other paid-in capital	2,308	2,308
Retained earnings	583	586
Accumulated other comprehensive loss, net	(3)	(4)
Total shareholder's equity	2,888	2,890
Total liabilities and shareholder's equity	$ 8,935	$ 8,835