DERIVATIVE INSTRUMENTS (TABLES)

12 Months Ended

Dec. 31, 2012

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

Fair values of derivative instruments on the consolidated balance sheet as of December 31 (in millions):

	2012			2011
Derivative Instruments Not Designated as Hedges
Fuel hedge contracts
Fuel hedge contracts, current assets	$	26		$	47
Fuel hedge contracts, noncurrent assets	39			70
Fuel hedge contracts, current liabilities	(1		)	$	(10	)
Derivative Instruments Designated as Hedges
Interest rate swaps
Other accrued liabilities	(6		)	(5		)
Other liabilities	(27		)	(24		)
Losses in accumulated other comprehensive loss (AOCL)	(33		)	(29		)

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block]

Pretax effect of derivative instruments on earnings (fuel hedges) and AOCL (interest rate swaps) at December 31 (in millions):

	2012			2011			2010
Derivative Instruments Not Designated as Hedges
Fuel hedge contracts
Losses recognized in aircraft fuel expense	$	(62	)	$	(9	)	$	(2	)
Derivative Instruments Designated as Hedges
Interest rate swaps
Losses recognized in aircraft rent	(6		)	(6		)	(6		)
Losses recognized in other comprehensive income (OCI)	(10		)	(26		)	(17		)