Commodity And Other Derivative Contractual Assets And Liabilities (Tables)

9 Months Ended

Sep. 30, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Commodity and Other Derivative Contractual Assets and Liabilities as Reported in the Balance Sheets

The following tables provide detail of commodity and other derivative contractual assets and liabilities (with the column totals representing the net positions of the contracts) as reported in the condensed consolidated balance sheets at September 30, 2015 and December 31, 2014. All amounts relate to commodity contracts.

	September 30, 2015					December 31, 2014
	Derivative Assets		Derivative Liabilities			Derivative Assets		Derivative Liabilities
Current assets	$	393	$	—		$	492	$	—
Noncurrent assets	14		16			5		—
Current liabilities	—		(160		)	—		(316		)
Noncurrent liabilities	—		(4		)	—		(1		)
Net assets (liabilities)	$	407	$	(148	)	$	497	$	(317	)

Schedule of Pre-tax Effect on Net Income of Derivatives Not Under Hedge Accounting, Including Realized and Unrealized Effects

The following table presents the pretax effect of derivative gains (losses) on net income (loss), including realized and unrealized effects:

	Three Months Ended September 30,				Nine Months Ended September 30,
Derivative (condensed statements of consolidated income (loss) presentation)	2015		2014		2015		2014
Commodity contracts (Net gain (loss) from commodity hedging and trading activities) (a)	$	130	$	54	$	281	$	(114	)
Interest rate swaps (Interest expense and related charges) (b)	—		—		—		(128		)
Interest rate swaps (Reorganization items) (Note 7)	—		—		—		(277		)
Net gain (loss)	$	130	$	54	$	281	$	(519	)

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(a) Amount represents changes in fair value of positions in the derivative portfolio during the period, as realized amounts related to positions settled are assumed to equal reversals of previously recorded unrealized amounts.

(b) Includes unrealized mark-to-market net gain (loss) as well as the net realized effect on interest paid/accrued, both reported in Interest Expense and Related Charges (see Note 6).

Offsetting Assets and Liabilities

The following tables reconcile our derivative assets and liabilities as presented in the condensed consolidated balance sheets to net amounts after taking into consideration netting arrangements with counterparties and financial collateral:

September 30, 2015
	Amounts Presented in Balance Sheet			Offsetting Instruments (a)			Financial Collateral (Received) Pledged (b)			Net Amounts
Derivative assets:
Commodity contracts	$	423		$	(142	)	$	(123	)	$	158
Derivative liabilities:
Commodity contracts	(164		)	142			1			(21		)
Net amounts	$	259		$	—		$	(122	)	$	137

December 31, 2014
	Amounts Presented in Balance Sheet			Offsetting Instruments (a)			Financial Collateral (Received) Pledged (b)			Net Amounts
Derivative assets:
Commodity contracts	$	497		$	(298	)	$	(16	)	$	183
Derivative liabilities:
Commodity contracts	(317		)	298			2			(17		)
Net amounts	$	180		$	—		$	(14	)	$	166

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(a) Amounts presented exclude trade accounts receivable and payable related to settled financial instruments.

(b) Financial collateral consists entirely of cash margin deposits.

Schedule of Gross Notional Amounts of Derivative Volumes

The following table presents the gross notional amounts of derivative volumes at September 30, 2015 and December 31, 2014:

	September 30, 2015	December 31, 2014
Derivative type	Notional Volume		Unit of Measure
Natural gas (a)	1,821	1,687	Million MMBtu
Electricity	43,425	22,820	GWh
Congestion Revenue Rights (b)	94,195	89,484	GWh
Coal	8	10	Million US tons
Fuel oil	42	36	Million gallons
Uranium	126	150	Thousand pounds

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(a) Represents gross notional forward sales, purchases and options transactions, locational basis swaps and other natural gas transactions.

(b) Represents gross forward purchases associated with instruments used to hedge electricity price differences between settlement points within ERCOT.