Note 13 - Employee Benefit Plans (Detail) - SIP Activity (USD $) In Millions, except Share data in Thousands, unless otherwise specified	6 Months Ended
	Mar. 31, 2013
Outstanding at beginning of fiscal year	12,117
Outstanding at beginning of fiscal year (in Dollars per share)	$ 18.12
Exercised	(423)
Exercised (in Dollars per share)	$ 11.89
Forfeited	(280)
Forfeited (in Dollars per share)	$ 16.70
Expired	(627)
Expired (in Dollars per share)	$ 19.79
Outstanding at end of period	10,787
Outstanding at end of period (in Dollars per share)	$ 18.31
Outstanding at end of period	5 years 219 days
Outstanding at end of period (in Dollars)	$ 12.8
Vested and expected to vest	10,553
Vested and expected to vest (in Dollars per share)	$ 18.35
Vested and expected to vest	5 years 6 months
Vested and expected to vest (in Dollars)	12.7
Exercisable at end of period	8,317
Exercisable at end of period (in Dollars per share)	$ 18.81
Exercisable at end of period	5 years
Exercisable at end of period (in Dollars)	$ 11.4