Commitments (Details 4) (USD $) In Millions, unless otherwise specified	Nov. 30, 2012
Other Aircraft Commitments Disclosure [Line Items]
Boeing 777F Conditional Aircraft Commitments	9
Boeing 767F Conditional Aircraft Commitments	4
Other Commitment Disclosures [Abstract]
Deposit and Progress Payments	$ 408
Required Pensions Contributions Remaining	$ 280
December 2012 Agreement [Member]
Other Aircraft Commitments Disclosure [Line Items]
Subsequent Boeing 767F Aircraft Purchases	4
Subsequent 2015 Boeing 777F deferrals	2