And his modest spending habits have made headlines over the years.
But it is difficult to separate what belongs to him, what belongs to his children and what is held in a family foundation in one of Europe's most infamous tax havens, Liechtenstein.Ikea founder Ingvar Kamprad has died, the company has confirmed.The 91-year-old billionaire passed away on Saturday at his mansion in Smaland, Sweden.A self-confessed alcoholic, the Ikea founder admitted he had an ongoing problem with drink.But he said he has it under control and that he 'dries out' three times a year.He came up with the idea of flat-packed furniture when he was trying to fit a table into the boot of his car. The billionaire opened his first store in 1965, only to see the wind smash the neon sign and cause a fire which burned the place down.In his early years, Mr Kamprad sold matchboxes to neighbours from his bicycle, finding out he could buy them in bulk very cheaply from Stockholm.Just one per cent of prototypes made by designers end up in stores8.Nearly half of all store managers worldwide are women 9.He once took a bus to a gala evening to collect a businessman of the year award - prompting security to refuse to let him in.In 2008, he told newspaper Sydsvenskan that a 22-euro bill in the Netherlands had broken his barbering budget.'Normally, I try to get my haircut when I'm in a developing country. Mr Kamprad was said to be a former Nazi sympathiser following the Second World War.