Derivative Contracts Schedule of Commodity Derivative Contracts (Details) MMBTU in Millions	12 Months Ended
	Dec. 31, 2015 USD ($) MMBTU $ / MMBTU
Gas Basis Swaps [Member] | QEP Energy [Member] | Year 2016 [Member] | NYMEX WTI less LLS Differential [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	29.3
Derivatives, Weighted Average Differential | $	$ (0.15)
Gas Basis Swaps [Member] | QEP Energy [Member] | Year 2017 [Member] | NYMEX WTI less LLS Differential [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	7.3
Derivatives, Weighted Average Differential | $	$ (0.20)
Natural Gas Sales Costless Collars [Member] | QEP Energy [Member] | Year 2016 [Member] | NYMEX [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	7.3
Derivative Average Price Floor | $	$ 2.75
Derivative Average Price Ceiling | $	$ 3.89
Natural Gas Sales [Member] | QEP Energy [Member] | Year 2016 [Member] | NYMEX [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	51.2
Underlying, Derivative Asset | $ / MMBTU	2.83
Natural Gas Sales [Member] | QEP Energy [Member] | Year 2016 [Member] | IFNPCR [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	65.9
Underlying, Derivative Asset | $ / MMBTU	2.57
Natural Gas Sales [Member] | QEP Energy [Member] | Year 2017 [Member] | NYMEX [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	40.2
Underlying, Derivative Asset | $ / MMBTU	2.83
Natural Gas Sales [Member] | QEP Energy [Member] | Year 2017 [Member] | IFNPCR [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	21.9
Underlying, Derivative Asset | $ / MMBTU	2.52
Natural Gas Sales [Member] | QEP Marketing [Member] | Year 2016 [Member] | IFNPCR [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	2.3
Underlying, Derivative Asset | $ / MMBTU	2.87
Purchased Gas and Oil Expense [Member] | QEP Marketing [Member] | Year 2016 [Member] | IFNPCR [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	0.2
Underlying, Derivative Asset | $ / MMBTU	2.11
Oil Sales [Member] | QEP Energy [Member] | Year 2016 [Member] | NYMEX WTI [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	6.6
Underlying, Derivative Asset | $ / MMBTU	58.00
Oil Sales [Member] | QEP Energy [Member] | Year 2017 [Member] | NYMEX WTI [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	2.6
Underlying, Derivative Asset | $ / MMBTU	54.39