Acquisitions And Divestitures (Summary Of Preliminary Assets And Liability Acquired) (Details) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010
Property, plant and equipment	$ 1,419,591
Total consideration, net of cash received	1,971,438		156,388
LDH [Member]
Total current assets	118,177
Property, plant and equipment	1,419,591	[1]
Goodwill	432,026
Intangible assets	81,000
Other assets	157
Total assets	2,050,951
Total current liabilities	74,964
Other long-term liabilities	438
Total liabilities	75,402
Total consideration	1,975,549
Cash received	31,231
Total consideration, net of cash received	$ 1,944,318

[1] Property, plant and equipment (and estimated useful lives) consists of the following: Land and improvements$30,759Buildings and improvements (10 to 40 years)3,123Pipelines and equipment (20 to 65 years)662,881Natural gas liquids storage (40 years)682,419Linepack704Vehicles (3 to 20 years)242Furniture and fixtures (3 to 10 years)49Other (5 to 10 years)8,526Construction work-in-process30,888Property, plant and equipment$1,419,591