Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2015

Fair Value Measurements [Abstract]

Schedule Of Carrying Value And Fair Value Measurement Information For Financial Assets And Liabilities

					Fair Value Measurements Using:
	Carrying		Total Fair		Level 1		Level 2		Level 3
	Amount		Value		Inputs		Inputs		Inputs
		(Millions)
March 31, 2015 assets (liabilities):
Cash equivalents	$	1,321	$	1,321	$	716	$	605	$	-
Oil, gas and NGL commodity derivatives	$	1,670	$	1,670	$	-	$	1,670	$	-
Oil, gas and NGL commodity derivatives	$	(52)	$	(52)	$	-	$	(52)	$	-
Midstream commodity derivatives	$	22	$	22	$	-	$	22	$	-
Midstream commodity derivatives	$	(5)	$	(5)	$	-	$	(5)	$	-
Interest rate derivatives	$	3	$	3	$	-	$	3	$	-
Interest rate derivatives	$	(1)	$	(1)	$	-	$	(1)	$	-
Foreign currency derivatives	$	22	$	22	$	-	$	22	$	-
Debt	$	(11,749)	$	(13,217)	$	-	$	(13,217)	$	-
Capital lease obligations	$	(19)	$	(19)	$	-	$	(19)	$	-
December 31, 2014 assets (liabilities):
Cash equivalents	$	950	$	950	$	340	$	610	$	-
Oil, gas and NGL commodity derivatives	$	1,968	$	1,968	$	-	$	1,968	$	-
Oil, gas and NGL commodity derivatives	$	(51)	$	(51)	$	-	$	(51)	$	-
Midstream commodity derivatives	$	27	$	27	$	-	$	27	$	-
Midstream commodity derivatives	$	(5)	$	(5)	$	-	$	(5)	$	-
Interest rate derivatives	$	1	$	1	$	-	$	1	$	-
Interest rate derivatives	$	(1)	$	(1)	$	-	$	(1)	$	-
Foreign currency derivatives	$	8	$	8	$	-	$	8	$	-
Debt	$	(11,262)	$	(12,472)	$	-	$	(12,472)	$	-
Capital lease obligations	$	(20)	$	(20)	$	-	$	(20)	$	-