Incentive Plans (Schedule Of Integral Part Of Consolidated Financial Statements) (Details) (PSE Ltip Phantom Units [Member], USD $)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
PSE Ltip Phantom Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares/Units, Outstanding at beginning of year	23,865	[1]
Number of Units granted	7,492	[1]
Number of Units Lapse of restrictions	(8,165)	[1]
Number of Shares/Units, Outstanding at end of year	23,192	[1]	23,865	[1]
Weighted Average Grant-Date Fair Value, Outstanding at beginning of year	$ 117.94
Weighted Average Grant-Date Fair Value, Shares granted	$ 110.32		$ 120.43		$ 138.32
Weighted Average Grant Date Fair Value Lapse of restrictions	$ 97.81
Weighted Average Grant-Date Fair Value, Outstanding at end of year	$ 122.55		$ 117.94

[1] (a)Reflects the number of awards in Pioneer common stock after the Pioneer Southwest merger based upon the Conversion Ratio.