Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 82	$ 67
Accounts receivable, net	130	156
Inventories	48	43
Regulatory assets	37	15
Deferred income taxes	38	48
Other current assets	27	23
Total current assets	362	352
Property, plant and equipment, net	2,566	2,552
Regulatory assets	424	427
Other assets	36	38
Total assets	3,388	3,369
Current liabilities:
Accounts payable	129	151
Accrued interest	15	15
Accrued property, income and other taxes	12	12
Accrued employee expenses	8	7
Regulatory liabilities	47	37
Current portion of long-term debt	1	1
Customer deposits and other	15	16
Total current liabilities	227	239
Long-term debt	1,199	1,199
Regulatory liabilities	246	243
Deferred income taxes	528	525
Other long-term liabilities	149	147
Total liabilities	2,349	2,353
Commitments and contingencies (Note 7)
Shareholder's Equity:
Common stock - $3.75 stated value, 20,000,000 shares authorized and 1,000 issued and outstanding	0	0
Other paid-in capital	1,111	1,111
Accumulated deficit	(71)	(93)
Accumulated other comprehensive loss, net	(1)	(2)
Total shareholder's equity	1,039	1,016
Total liabilities and shareholder's equity	$ 3,388	$ 3,369