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Other (Notes)	9 Months Ended
Other (Notes)	Sep. 30, 2016
Asset Retirement Obligation Disclosure [Abstract]
Other	OTHER Our Asset retirement obligations in Total other noncurrent liabilities on our Balance Sheet reflects a $21.5 million decrease for 2016 compared to December 31, 2015. This decrease is primarily due to changes in estimates of existing obligations as a result of our annual review process. The annual review process considers various factors including inflation rates, current estimates for removal cost, discount rates, and the estimated remaining life of assets.