Fuel (Tables)

6 Months Ended

Jun. 30, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance

The Effects of Derivative Instruments Gains and Losses for the Three Months Ended June 30, 2013 and 2012
Derivatives in ASC 815-20 Cash Flow Hedging Relationships
	Amount of Loss Recognized in Other Comprehensive Income (OCI) on Derivatives (Effective Portion)
	2013		2012
Fuel Contracts	$	—	$	(2	)
Total derivatives	$	—	$	(2	)

		Amount of Gain Recognized from AOCL into Income (Effective Portion)
	Location of Gain Recognized	2013		2012
	from AOCL into Income
Fuel Contracts	Fuel expense	$	—	$	4
Total derivatives		$	—	$	4

		Amount of Loss Recognized in Income on Derivatives (Ineffective Portion and Amount Excluded from Effectiveness Testing)a
	Location of Loss Recognized	2013		2012
	in Income on Derivatives
Fuel Contracts	Fuel expense	$	—	$	(1	)
Total derivatives		$	—	$	(1	)

^a No portion of the loss was excluded from the assessment of hedge effectiveness for the periods then ended.

The Effects of Derivative Instruments Gains and Losses for the Six Months Ended June 30, 2013 and 2012
Derivatives in ASC 815-20 Cash Flow Hedging Relationships
	Amount of Gain Recognized in Other Comprehensive Income (OCI) on Derivatives (Effective Portion)
	2013		2012
Fuel Contracts	$	—	$	7
Total derivatives	$	—	$	7

		Amount of Gain Recognized from AOCL into Income (Effective Portion)
	Location of Gain Recognized	2013		2012
	from AOCL into Income
Fuel Contracts	Fuel expense	$	—	$	25
Total derivatives		$	—	$	25

		Amount of Loss Recognized in Income on Derivatives (Ineffective Portion and Amount Excluded from Effectiveness Testing)a
	Location of Loss Recognized	2013		2012
	in Income on Derivatives
Fuel Contracts	Fuel expense	$	—	$	(3	)
Total derivatives		$	—	$	(3	)

^a No portion of the loss was excluded from the assessment of hedge effectiveness for the periods then ended.