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Note 11 - Senior Secured, Senior, Senior Amortizing, Senior Exchangeable and Senior Subordinated Amortizing Notes (Details) - Senior Secured, Senior and Senior Subordinated Notes (Parentheticals)
Feb. 15, 2014
Jul. 31, 2014
The 7.25% 2020 Notes [Member]
Senior Secured Notes [Member]
Oct. 31, 2013
The 7.25% 2020 Notes [Member]
Senior Secured Notes [Member]
Jul. 31, 2014
The 9.125% 2020 Notes [Member]
Senior Secured Notes [Member]
Oct. 31, 2013
The 9.125% 2020 Notes [Member]
Senior Secured Notes [Member]
Jul. 31, 2014
The 2.0% 2021 Notes [Member]
Senior Secured Notes [Member]
Oct. 31, 2013
The 2.0% 2021 Notes [Member]
Senior Secured Notes [Member]
Jul. 31, 2014
The 5.0% 2021 Notes [Member]
Senior Secured Notes [Member]
Oct. 31, 2013
The 5.0% 2021 Notes [Member]
Senior Secured Notes [Member]
Jul. 31, 2014
The 6.25% 2015 Notes [Member]
Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
Oct. 31, 2013
The 6.25% 2015 Notes [Member]
Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
Jul. 31, 2014
The 11.875% 2015 Notes [Member]
Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
Oct. 31, 2013
The 11.875% 2015 Notes [Member]
Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
Jul. 31, 2014
The 6.25% 2016 Notes [Member]
Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
Oct. 31, 2013
The 6.25% 2016 Notes [Member]
Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
Jul. 31, 2014
The 7.5% 2016 Notes [Member]
Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
Oct. 31, 2013
The 7.5% 2016 Notes [Member]
Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
Jul. 31, 2014
The 8.625% 2017 Notes [Member]
Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
Oct. 31, 2013
The 8.625% 2017 Notes [Member]
Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
Jul. 31, 2014
The 7.0% 2019 Notes [Member]
Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
Jul. 31, 2014
The 11.0% 2017 Amortizing Note [Member]
Senior Amortizing Notes [Member]
Oct. 31, 2013
The 11.0% 2017 Amortizing Note [Member]
Senior Amortizing Notes [Member]
Oct. 02, 2012
The 11.0% 2017 Amortizing Note [Member]
Senior Amortizing Notes [Member]
Jul. 31, 2014
The 7.25% Senior Subordinated Amortizing Notes [Member]
Senior Subordinated Amortizing Notes [Member]
Oct. 31, 2013
The 7.25% Senior Subordinated Amortizing Notes [Member]
Senior Subordinated Amortizing Notes [Member]
Feb. 09, 2011
The 7.25% Senior Subordinated Amortizing Notes [Member]
Senior Subordinated Amortizing Notes [Member]
Debt Instrument [Line Items]                                                    
Debt Instrument Stated Interest Rate 7.25% 7.25% 7.25% 9.125% 9.125% 2.00% 2.00% 5.00% 5.00% 6.25% 6.25% 11.875% 11.875% 6.25% 6.25% 7.50% 7.50% 8.625% 8.625% 7.00% 11.00% 11.00% 11.00% 7.25% 7.25% 7.25%