Commitments - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($) Crew	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Long-term Purchase Commitment [Line Items]
Operating Leases, Rent Expense	$ 5	$ 7	$ 33
Operating Leases Commitment	$ 9
Pressure Pumping Leases [Member] | Discontinued Operations, Disposed of by Means Other than Sale, Spinoff [Member] | Seven Seven Energy Inc. [Member]
Long-term Purchase Commitment [Line Items]
Number of Crews | Crew	3
Percent of Total	50.00%
Operating Leases Commitment	$ 53