Note 19 - Share-based Compensation (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

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

	Number of shares (in thousands)			Weighted- average exercise price		Weighted- average remaining contractual term in years		Aggregate intrinsic value (in thousands)
Options outstanding as of December 31, 2015		42,738		$	19.40
Granted		1,680			20.01
Exercised		(8,549	)		16.16
Forfeited and expired		(4,362	)		25.97
Options outstanding as of December 31, 2016		31,507			19.40		3.79	$	160,932
Options expected to vest as of December 31, 2016		31,469			19.40		3.79		160,794
Options exercisable as of December 31, 2016		26,723			19.15		2.98		144,236

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

	2016			2015			2014
Expected volatility	37.1	-	43.1%	43.6	-	44.9%	45.4	-	46.2%
Weighted-average volatility	37.1	-	43.1%	43.6	-	44.9%	45.4	-	46.2%
Expected dividends	2.28	-	2.94%	1.92	-	2.68%	1.90	-	2.09%
Risk-free rate	1.4	-	2.1%	1.9	-	2.1%	2.0	-	2.2%
Average risk-free rate	1.4	-	2.1%	1.9	-	2.1%	2.0	-	2.2%
Expected term (in years)	7.4	-	7.4	7.2	-	7.2	7.2	-	7.2
Pre-vesting departure rate	0.6	-	0.6%	0.6	-	0.6%	0.5	-	0.5%

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

	Shares (000’s)			Weighted- average grant-date fair value
Non-vested shares and share units at December 31, 2015		5,242		$	17.91
Granted		1,518			20.80
Vested		(2,014	)		14.78
Forfeited		(106	)		20.58
Non-vested shares and share units at December 31, 2016		4,640		$	20.15