Question: Julian C. Day is the former President and CEO of an American big box department store chain that purchased Sears for how much in 2005?

Context paragraphs:
Kmart: Kmart is an American big box department store chain headquartered in Hoffman Estates, Illinois, United States.  The chain purchased Sears for $11 billion in 2005, forming a new corporation under the name Sears Holdings Corporation.  The Kmart name was incorporated in 1916 while the first store didn't open its doors until 1962.  At its peak in 2000, Kmart operated 2,171 stores including 105 Super Kmart Center locations.  For the 2005 fiscal year under the new company, the Kmart store count was at 1,416 with only 55 Super Kmart Center locations.  Currently, the chain is operating 624 stores with only 1 Super Kmart Center location remaining (Store #4939 in Warren, OH).  This number is the amount of stores that still exist after the closings that took place during the first quarter of 2017.

Times Square Stores: Times Square Stores (also called TSS and TSS Seedman's) was an American department store chain based in New York City that operated from 1929 to 1989.  By the late 1980s the chain operated 12 stores in New York and 6 in Puerto Rico, and an off-price ladies' apparel chain, "Finders Keepers", which had 15 locations.  The New York department stores ranged in size from 160,000 to 220000 sqft .  During its prime it was considered Long Island's most prominent discount department store chain.

Efird's Department Store: Efird's Department Store, also known as Lourie’s Department Store, is a historic department store building located at Columbia, South Carolina.  It was built about 1870, and is a rectangular brick building renovated and expanded in 1919.  This included the addition of a third story and the installation of a new brick façade and store entrances.  Between 1919 and 1958, it housed the Columbia branch of the Charlotte, North Carolina based Efird’s Department Store chain.

Gimbels: Gimbel Brothers (Gimbels) was an American department store corporation from 1887 until 1987.  Adam Gimbel opened the first store in Vincennes, Indiana that would later lead to his son Bernard opening the first store in the chain of Gimbels Department Stores in Milwaukee, Wisconsin.The company is known for creating the Gimbels Thanksgiving Day Parade, the oldest parade in the country.  Gimbels was also once the largest department store chain in the country.  By the time it closed in 1987, Gimbels had 35 stores in Pennsylvania, New York, New Jersey, Wisconsin, and Connecticut.

Julian C. Day: Julian C. Day (born May 14, 1952) is an American corporate executive.  He is the former President and CEO of Kmart and the former CEO of RadioShack.

Julian C. Smith Hall: The Julian C. Smith Hall is a historic building located on Julian C. Smith Drive, on Hadnot Point in Marine Corps Base Camp Lejeune, Jacksonville, North Carolina.  It currently serves as the headquarters building for the II Marine Expeditionary Force and the 2d Marine Division.  It is named after Lieutenant General Julian C. Smith, former commanding general of the 2d Marine Division during World War II.  The Camp Lejeune address is Building H-1.

Sears: Sears, short name for Sears, Roebuck & Company, is an American chain of department stores founded by Richard Warren Sears and Alvah Curtis Roebuck in 1886.  Formerly based at the Sears Tower in Chicago and currently headquartered in Hoffman Estates, Illinois, it began as a mail ordering catalog company and began opening retail locations in 1925.  The company was bought by the American big box chain Kmart in 2005, which renamed itself Sears Holdings upon completion of the merger.  In terms of domestic revenue, Sears was the largest retailer in the United States until October 1989, when Walmart surpassed the record.  It is currently the fifth-largest American department store company by sales as of October 2013 (behind Walmart, Target, Best Buy, and The Home Depot), and the twelfth-largest retailer in the country overall.  Sears operates divisions in Canada and Mexico, as well as several other subsidiaries within its brand.

Target Australia: Target Australia Pty Ltd (formerly Lindsay's and later Lindsay's Target) is a mid-price department store chain owned by Wesfarmers.  It is Australia's largest department store chain by store number, operating 308 stores throughout the country (183 Target stores and 125 Target Country).  Products it sells include branded clothing, cosmetics, homewares, electrical, fitness and consumer electronics.  The company's national support office is currently located in North Geelong, Victoria but will move its headquarters to Williams Landing at the end of 2018.

Gus Blass Department Store: The Gus Blass Department Store is a historic commercial building at 318-324 Main Street in Little Rock, Arkansas.  It is a seven story masonry structure, built in 1912 to a design by George R. Mann, a leading Arkansas architect.  It was one of the first instances of two-way concrete slab construction in the nation, and was one of the first department stores in the state to be air conditioned (in 1936).  The Blass Department Store was for many years the city's largest department store, and remained in business here into the 1970s, ultimately becoming a part of the Dillard's department store chain before closing in 1972.

Federal's: Federal Department Store, or Federal's, was a department store chain based in Detroit, Michigan.  It was founded in 1929.  In 1961, Federal's merged with Kobacker's of Columbus, Ohio and in 1969, it bought Shifrin-Willens Jewelers.  The chain filed for bankruptcy in 1972.  That same year, the Federal's stores in Lansing and Kalamazoo were closed.  Steven Watstein, also known as Steven West, purchased Federal's in 1978.  The chain was liquidated in 1980.

Supporting paragraphs: Julian C. Day Kmart
Answer: $11 billion