Risk Management and Hedging Activities (Tables)

9 Months Ended

Sep. 30, 2016

Risk Management And Hedging Activities [Abstract]

Derivative Assets And Liabilities Offsetting

Information about our interest rate swaps that had netting or rights of offset arrangements is as follows:

	September 30, 2016						December 31, 2015
	Gross Amounts Presented in the Condensed Consolidated Balance Sheet		Amounts Not Offset in the Condensed Consolidated Balance Sheet		Net Amount		Gross Amounts Presented in the Condensed Consolidated Balance Sheet		Amounts Not Offset in the Condensed Consolidated Balance Sheet		Net Amount
Description	(in millions)
Assets	$	56	$	—	$	56	$	37	$	—	$	37

Commodity Derivative Assets and Liabilities Offsetting

At September 30, 2016, we had no commodity mark-to-market derivatives outstanding. At December 31, 2015, we had commodity mark-to-market derivatives outstanding that had netting or rights of offset arrangements as follows:

	December 31, 2015
	Gross  Amounts		Gross Amounts Offset		Net Amount Presented in the Condensed Consolidated Balance Sheet
Description	(in millions)
Assets	$	104	$	63	$	41
Liabilities	63		63		—

Commodity derivative impact

Information regarding the impacts of commodity derivatives on our Condensed Consolidated Statements of Operations is as follows:

		Three Months Ended September 30,				Nine Months Ended September 30,
Derivatives	Condensed Consolidated Statements of Operations Caption	2016		2015		2016			2015
		(in millions)
Commodity derivatives	Sales of natural gas liquids	$	8	$	13	$	(8	)	$	25