Organization And Summary Of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Organization And Summary Of Significant Accounting Policies [Abstract]

Components Of Inventory

		For year ended December 31,
		2014		2013
		(in millions)
Inventory:
Natural gas in underground storage	$	4	$	4
Tubulars and other equipment		33		34

Schedule Of Supplemental Disclosures Of Cash Flow Information

	For the years ended December 31,
	2014		2013		2012
	(in millions)
Cash paid during the year for interest, net of amounts capitalized	$	50	$	36	$	17
Cash paid during the year for income taxes		28		19		1
Increase (decrease) in noncash property additions		174		(13)		(26)