Long Term Debt (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
Line of Credit [Member]
Debt Instrument [Line Items]
Debt Instrument, Covenant Compliance	We were in compliance with all covenants in our financing agreements at December 31, 2013
Senior Secured Pacific Facilities [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,000,000,000
Pacific Routes Revolving Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	450,000,000
Pacific Routes Term Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Percentage Of Principal	0.01
Debt Instrument, Frequency of Periodic Payment	quarterly
Senior Secured Credit Facilities [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	2,600,000,000
Term Loan Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Percentage Of Principal	0.01
Debt Instrument, Frequency of Periodic Payment	quarterly
Debt Instrument, Face Amount	1,400,000,000
Debt Instrument, Maturity Date	Apr. 30, 2017
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	1,200,000,000
Debt Instrument, Maturity Date	Apr. 30, 2016
Revolving Credit Facility Letters of Credit [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 500,000,000