Restatement (Tables)

9 Months Ended

Sep. 30, 2015

Error Corrections and Prior Period Adjustments Restatement [Line Items]

Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]

A summary of the significant effects of the restatement is as follows:

	Nine Months Ended September 30, 2015
	As Restated			As Previously Reported
	(in millions)
Condensed Statements of Consolidated Cash Flows:
Cash Flows from Operating Activities:
Accounts receivable/payable–affiliated companies	$	(23	)	$	97
Net cash provided by operating activities	687			807
Cash Flows from Financing Activities:
Increase in notes payable–affiliated companies	120			—
Net cash used in financing activities	(190		)	(310		)