XML 70 R44.htm IDEA: XBRL DOCUMENT v3.6.0.2
Commitments (Details 4)
$ in Millions
6 Months Ended
Nov. 30, 2016
USD ($)
Other Aircraft Commitments Disclosure [Abstract]  
Boeing 777F Conditional Aircraft Commitments 7
Boeing 767F Conditional Aircraft Commitments 4
Other Commitment Disclosures [Line Items]  
Deposit and Progress Payments $ 430