Chapter 11 Reorganization Reorganization Items Table Note (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012
Reorganization Items, Other	$ 10	$ 10
Reached agreement to modify leases	155	155
Boeing 757-200 Aircraft [Member]
Reached agreement to modify leases	36	36
MD-80 Aircraft [Member]
Reached agreement to modify leases	83	83
Super ATR Aircraft [Member]
Reached agreement to modify leases	39	39
Boeing 737-800 Aircraft [Member]
Reached agreement to modify leases	9	9
Boeing 767-200ER Aircraft [Member]
Reached agreement to modify leases	11	11
Boeing 767-300ER Aircraft [Member]
Reached agreement to modify leases	13	13