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Acquisitions Eagle Rock PPA Table (Details) (Eagle Rock [Member], USD $)
In Millions, unless otherwise specified
Jul. 01, 2014
Eagle Rock [Member]
 
Current assets $ 115
Property, plant and equipment 1,329
Other long-term assets 4
Total Assets Acquired 1,448
Current liabilities 109
Long-term debt 499
Long-term liabilities 12
Total Liabilities Assumed 620
Net Assets Acquired $ 828