Editing Hilton Worldwide (section)

=== Two chains with one name ===
The company spun off its international operations into a separately traded company on December 1, 1964, known as "Hilton International Co." It was acquired in 1967 by [[Trans World Corporation|Trans World Corp.]], the holding company for [[Trans World Airlines]]. 

As a result, there were two separate, fully independent companies operating hotels under the Hilton name. Because the two chains were contractually forbidden to operate hotels in the other's territory under the Hilton name, for many years hotels run by Hilton International in the U.S. were called Vista International Hotels, while hotels operated by the American arm of Hilton outside the U.S. were named Conrad Hotels. Those Hilton Hotels outside the U.S. were, until 2006, styled as "Hilton International" hotels. <ref>{{Cite web |title=HILTON INTERN. CO., INC. - 888 F.Supp. 520 (1995) – upp52011326 – Leagle.com |url=https://www.leagle.com/decision/19951408888fsupp52011326 |url-status=live |archive-url=https://web.archive.org/web/20170902145900/https://www.leagle.com/decision/19951408888fsupp52011326 |archive-date=September 2, 2017 |access-date=April 28, 2018 |website=leagle.com}}</ref>

In 1986, Hilton International was sold to [[UAL Corporation|UAL Corp.]], the holding company for [[United Airlines]], for $980 million.<ref>{{cite web | url=https://www.latimes.com/archives/la-xpm-1986-12-24-fi-4-story.html | title=UAL to Buy Hilton International for $980 Million After KLM Cancels Deal | website=[[Los Angeles Times]] | date=December 24, 1986 }}</ref> UAL was reorganized as Allegis Corp. in an attempt to re-incarnate itself as a full-service travel company, encompassing [[Westin Hotels]] and [[The Hertz Corporation|Hertz rental cars]] in addition to Hilton International and United Airlines. In 1987, after a corporate [[putsch]], the renamed Allegis sold Hilton International to [[Ladbrokes|Ladbroke Group plc]], a British leisure and gambling company, for $1.07 billion.<ref>{{cite web | url=https://www.nytimes.com/1987/09/05/business/ladbroke-to-buy-hilton-international.html | title=Ladbroke to Buy Hilton International | work=The New York Times | date=September 5, 1987 | last1=Wayne | first1=Leslie }}</ref> In May 1999, Ladbrokes was reorganized as "Hilton Group plc."<ref>{{Cite web |last=Killgren |first=Lucy |date=April 22, 1999 |title=Name Stake |url=http://www.marketingweek.co.uk/name-stake/2010226.article |url-status=live |archive-url=https://web.archive.org/web/20130525120338/http://www.marketingweek.co.uk/name-stake/2010226.article |archive-date=May 25, 2013 |access-date=June 18, 2012 |website=Marketing Week}}</ref>

[[File:Hilton Event Photo 2.png|thumb|CEO [[Peter George (businessman)|Peter George]], John Jackson and [[Stephen Bollenbach|Steve Bollenbach]] at a Ladbroke-Hilton event.]]

In 1997, to minimize longtime [[consumer confusion]], the American-owned Hilton and British-owned Hilton International companies adopted a joint marketing agreement, under which they shared the same logos, promoted each other's brands, and maintained joint reservation systems. At that point, the Vista chain was phased out, while Conrad was restyled as one of the luxury brands of Hilton, operating hotels within the U.S. and abroad.