Note 6 - Capital Stock

6 Months Ended

Jun. 30, 2017

Notes to Financial Statements

Stockholders' Equity Note Disclosure [Text Block]

6. Capital Stock

On

October 22, 2015,

our Board of Directors authorized the purchase of

$500

million of our common stock. On

April 20, 2017,

our Board of Directors authorized an additional purchase of up to

$500

million of our common stock. At

June 30, 2017,

$521

million of the combined authorization was remaining. We purchased approximately

1,892,000

shares, or

$180

million, of our common stock under our repurchase authorizations during the

six

months ended

June 30, 2017.

On

April 20, 2017,

our Board of Directors declared a regular quarterly dividend of

$0.23

per common share, which was paid on

May 19, 2017

,

to stockholders of record on

May 5, 2017

.

On

July 20, 2017,

our Board of Directors declared a regular quarterly dividend of

$0.23

per common share, which will be paid on

August 18, 2017

,

to stockholders of record on

August 7, 2017

.