Note 20 - Incentive Plans (Tables)

12 Months Ended

Dec. 31, 2015

Note 20 - Incentive Plans (Tables) [Line Items]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	2013
Weighted average fair value of options granted	$	5.04
Weighted average risk-free interest rates		1.46	%
Weighted average expected option lives (in years)		6.25
Weighted average expected volatility		35.95	%
Weighted average expected dividend yield		3.85	%

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	Shares			Weighted- Average Exercise Price Per Share		Aggregate Intrinsic Value (in millions)
Options outstanding, January 1, 2013		16,557,997		$	28.42	$	14.9
Exercised		(1,636,300	)	$	23.15
Granted		1,354,250		$	21.55
Forfeited		(901,802	)	$	31.38
Options outstanding, December 31, 2013		15,374,145		$	28.79	$	13.1
Exercised		(1,474,432	)	$	16.19
Forfeited		(2,005,952	)	$	28.68
Options outstanding, December 31, 2014		11,893,761		$	30.23	$	29.8
Exercised		(1,019,240	)	$	18.36
Forfeited		(1,862,080	)	$	32.55
Options outstanding, December 31, 2015		9,012,441		$	31.09	$	27.4
Options exercisable (fully vested) -
December 31, 2013		12,039,439		$	31.24	$	8.2
December 31, 2014		10,159,570		$	31.96	$	19.9
December 31, 2015		7,617,882		$	32.90	$	20.0

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

	2015			2014			2013
Restricted stock outstanding as of January 1,		1,911,145			1,591,082			1,562,912
Granted		729,160			804,465			549,263
Vested		(875,202	)		(418,309	)		(430,378	)
Forfeited		(52,569	)		(66,093	)		(90,715	)
Restricted stock outstanding as of December 31,		1,712,534			1,911,145			1,591,082

Performance Shares [Member]

Note 20 - Incentive Plans (Tables) [Line Items]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	2015			2014			2013
Stock price	$	26.83		$	21.49		$	21.54
Dividend yield (1)		0	%		0	%		0	%
Risk-free rate		0.98	%		0.65	%		0.14	%
Volatility		16.81	%		25.93	%		16.90	%
Term of the award (years)		1.88, 2.88			0.88, 1.88, 2.88			0.88