Question: How much profit has the logo of the American athletic shoe and clothing manufacturer who has trademarked the slogan "Just Do It" made?

Context paragraphs:
Just Do It: Just Do It (stylized as JUST DO IT.)  is a trademark of shoe company Nike, and one of the core components of Nike's brand.  The slogan was coined in 1988 at an advertising agency meeting.  The founder of Wieden+Kennedy agency, Dan Wieden credits the inspiration for his "Just Do It" Nike slogan to Gary Gilmore’s last words: "Let's do it."  The "Just Do It" campaign allowed Nike to further increase its share of the North American domestic sport-shoe business from 18% to 43%, (from $877 million to $9.2 billion in worldwide sales) from 1988 to 1998.  In many Nike-related situations, "Just Do It" appears alongside the Nike logo, known as the Swoosh.

Swoosh: The Swoosh is the logo of American athletic shoe and clothing manufacturer Nike, Inc. Today, it has become one of the most recognizable brand logos in the world, and the most profitable, having a worth of $26 billion alone.

N. Snellenburg &amp; Company: N. Snellenburg & Company, commonly known as Snellenburg's, was a Philadelphia, Pennsylvania based middle class department store and wholesale clothing manufacturer, established in 1869.  The company became the largest clothing manufacturer in the world and at one time employed 3,000.  The company sold directly from the workroom to the wearer, allowing clothing to be sold for lower prices.  Its slogan was "The Thrifty Store for Thrifty People."  In about 1952, the company was acquired by Bankers Securities Corporation, owned by Albert M. Greenfield, but remained family run until its closure in 1962.  Suburban locations were then acquired by Lit Brothers.

Joseph Hepworth (tailor): Joseph Hepworth (1834–1911) was the clothing manufacturer who founded "Joseph Hepworth & Son", a company which grew to become the United Kingdom's largest clothing manufacturer and which is now known as Next plc.

Prospecs: Prospecs is a South Korean athletic shoe manufacturer, which currently produces footwear and clothing for running.  Its headquarters are located in Seoul.  Original brand was PRO-SPECS (ko:프로-스펙스).  It is one of brands in 'LS Networks'.

Reebok Freestyle: Reebok Freestyle is an athletic shoe style introduced in 1982 by Reebok.  The Freestyle was the first sneaker designed and marketed for women.  It helped Reebok into the mainstream athletic wear market and fashion scene along with becoming one of the most popular athletic shoes of all time.  In 1984, the shoe accounted for more than half of Reebok sales.  The Reebok Freestyle was popular during the 1980s aerobics craze and is still in production and remodeled through various collections and style variations.

Diadora: Diadora is an Italian football, tennis, running, cycling, rugby, athletic shoe, clothing, and fashion accessory manufacturer with locations in Italy, the United States, Hong Kong, Australia and Bangladesh.

Dress shoe: A dress shoe (U.S. English) is a shoe to be worn at smart casual or more formal events.  A dress shoe is typically contrasted to an athletic shoe.

Profit (economics): In economics, profit in the accounting sense of the excess of revenue over cost is the sum of two components: normal profit and economic profit.  Normal profit is the profit that is necessary to just cover the opportunity costs of the owner-manager or of the firm's investors.  In the absence of this much profit, these parties would withdraw their time and funds from the firm and use them to better advantage elsewhere.  In contrast, economic profit, sometimes called excess profit, is profit in excess of what is required to cover the opportunity costs.

K-Swiss: K-Swiss, Inc. is an American athletic shoe brand based in Westlake Village, California and currently owned by Korean firm E-Land World Limited and its creator Kevin Randall.

Supporting paragraphs: Just Do It Swoosh
Answer: $26 billion