Accumulated Other Comprehensive Loss

12 Months Ended

Dec. 31, 2013

Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]

Accumulated Other Comprehensive Loss

Accumulated Other Comprehensive Loss (EME, Midwest Generation)

EME

EME's AOCI, net of tax and including discontinued operations, consisted of:

(in millions)	Unrealized Gains and Losses on Cash Flow Hedges			Unrecognized Losses and Prior Service Adjustments, Net1			Valuation Allowance on Deferred Tax Asset			AOCI
Balance at December 31, 2011	$	(34	)	$	(60	)	$	—		$	(94	)
OCI before reclassifications	(17		)	—			(6		)	(23		)
Amount reclassified from AOCI	(25		)	4			—			(21		)
Balance at December 31, 2012	(76		)	(56		)	(6		)	(138		)
OCI before reclassifications	34			33			—			67
Amount reclassified from AOCI	5			5			—			10
Balance at December 31, 2013	$	(37	)	$	(18	)	$	(6	)	$	(61	)

¹  For further detail, see Note 8—Compensation and Benefit Plans.

²  EME and Midwest Generation do not expect to reclassify unrealized losses on cash flow hedges into earnings in the next 12 months. For further explanation, see "—Unrealized Losses on Cash Flow Hedges."

The after-tax amounts recorded in AOCI at December 31, 2013 and 2012 for commodity contracts were losses of none and $1 million, respectively, and for interest rate contracts was losses of $37 million and $75 million, respectively. EME's significant items reclassified out of AOCI and the effect on the statement of operations consisted of:

(in millions)	Year Ended December 31, 2013			Affected Line Item in the Statement of Operations
Unrealized gains and losses on cash flow hedges
Electricity commodity hedges	$	(3	)	Operating revenues
Interest rate contracts	(5		)	Interest expense
Tax benefit	3			Benefit for income taxes
Total, net	$	(5	)	Net loss
Amortization of retirement benefit items
Unamortized prior service cost on terminated plan	$	(3	)	Plant operations and administrative and general1
Actuarial losses	(5		)	Plant operations and administrative and general1
Tax benefit	3			Provision for income taxes
Total, net	$	(5	)	Net loss

¹  For the year ended December 31, 2013, $5 million and $3 million were reclassified from AOCI to plant operations, and administrative and general expenses, respectively

Midwest Generation

Midwest Generation's AOCI, net of tax, consisted of:

(in millions)	Unrealized Gains and Losses on Cash Flow Hedges			Unrecognized Losses and Prior Service Adjustments, Net1			Valuation Allowance on Deferred Tax Asset			AOCI
Balance at December 31, 2011	$	21		$	(38	)	$	—		$	(17	)
OCI before reclassifications	4			(1		)	(12		)	(9		)
Amount reclassified from AOCI	(26		)	2			—			(24		)
Balance at December 31, 2012	(1		)	(37		)	(12		)	(50		)
OCI before reclassifications	(1		)	25			—			24
Amount reclassified from AOCI	2			3			—			5
Balance at December 31, 2013	$	—		$	(9	)	$	(12	)	$	(21	)

¹    For further detail, see Note 8—Compensation and Benefit Plans.

Midwest Generation's significant items reclassified out of AOCI and the effect on the statement of operations consisted of:

(in millions)	Year Ended December 31, 2013			Affected Line Item in the Statement of Operations
Unrealized gains and losses on cash flow hedges
Electricity commodity hedges	$	(4	)	Operating revenues
Tax benefit	2			Benefit for income taxes
Total, net	$	(2	)	Net loss
Amortization of retirement benefit items
Prior services costs	$	(1	)	Plant operations
Actuarial losses	(3		)	Plant operations
Tax benefit	1			Provision for income taxes
Total, net	$	(3	)	Net loss

Unrealized Losses on Cash Flow Hedges (EME, Midwest Generation)

At December 31, 2013, unrealized losses on cash flow hedges, net of tax, consisted of interest rate swap contracts that qualify for hedge accounting. These losses arise because current forecasts of future interest rates are lower than the contract rates. No unrealized losses on commodity cash flow hedges are expected to be reclassified into earnings during the next 12 months as no commodity cash flow hedges are designated beyond December 31, 2013.