Hedging Activities (Tables)

6 Months Ended

Jun. 30, 2013

The following tables present information about the financial statement classification of the Company’s derivatives (in millions):


Classification	Balance Sheet Location	June 30, 2013		December 31, 2012
Derivatives designated as cash flow hedges
Assets:
Fuel contracts due within one year	Receivables	$	6	$	7

Liabilities:
Fuel contracts due within one year	Current liabilities: Other	$	4	$	2
Fuel contracts with maturities greater than one year	Other liabilities and deferred credits: Other	$	3	$	—

Total liabilities		$	7	$	2

Derivatives not designated as hedges
Assets:
Fuel contracts due within one year	Receivables	$	4	$	44

Liabilities:
Fuel contracts due within one year	Current liabilities: Other	$	22	$	2
Fuel contracts with maturities greater than one year	Other liabilities and deferred credits: Other		4		1

Total liabilities		$	26	$	3

Total derivatives
Assets:
Fuel contracts due within one year	Receivables	$	10	$	51

Liabilities:
Fuel contracts due within one year	Current liabilities: Other	$	26	$	4
Fuel contracts with maturities greater than one year	Other liabilities and deferred credits: Other		7		1

Total liabilities		$	33	$	5

Schedule of Gains (Losses) on Derivative Instruments

The following tables present the impact of derivative instruments and their location within the Company’s unaudited statements of consolidated operations (in millions):

Derivatives designated as cash flow hedges


Fuel contracts	Amount of Loss Recognized in AOCI on Derivatives (Effective Portion)						Loss Reclassified from AOCI into Fuel Expense						Amount of Loss Recognized in Nonoperating income (expense): Miscellaneous, net (Ineffective Portion)
	Three Months Ended June 30,						Three Months Ended June 30,						Three Months Ended June 30,
	2013			2012			2013			2012			2013			2012
	$	(19	)	$	(262	)	$	(9	)	$	(38	)	$	(1	)	$	(29	)

Derivatives designated as cash flow hedges


Fuel contracts	Amount of Loss Recognized in AOCI on Derivatives Effective Portion)						Loss Reclassified from AOCI into Fuel Expense						Amount of Loss Recognized in Nonoperating income (expense): Miscellaneous, net (Ineffective Portion)
	Six Months Ended June 30,						Six Months Ended June 30,						Six Months Ended June 30,
	2013			2012			2013			2012			2013			2012
	$	(28	)	$	(169	)	$	(18	)	$	(69	)	$	(1	)	$	(4	)

Schedule of Derivative Instruments not Designated as Hedges Gains (Losses)

Derivatives not designated as hedges


Fuel contracts
	Three Months Ended June 30,					Six Months Ended June 30,
	2013			2012		2013			2012
Amount of loss recognized in Nonoperating income (expense):
Miscellaneous, net	$	(81	)	$	—	$	(31	)	$	—

Schedule of Derivative Credit Risk and Fair Value

The following table presents information related to the Company’s derivative credit risk as of June 30, 2013 (in millions):


Net derivative liability with counterparties	$	23
Collateral posted by the Company with counterparties (classified as an other current receivable)		—
Potential loss related to the failure of the Company’s counterparties to perform		1