She spends some of her fortune collecting art, including opening a museum, as well as breeding horses.
Here's a look at her life, career, and fortune.
Alice Walton, the only female heiress to the Walmart fortune, is now the richest woman in the world.
The three Walmart heirs — Rob Walton, Jim Walton, and Alice Walton — have a combined wealth of more than $288 billion, according to the Bloomberg Billionaires Index.
The 74-year-old Alice Walton has an estimated fortune worth $95.1 billion and ranks 18th on Bloomberg's list. She's the richest woman in the world after overtaking L'Oréal heiress Françoise Bettencourt Meyers, whose net worth currently stands at $91.1 billion, according to Bloomberg.
Despite the Waltons' high status, their personal lives remain largely private. Here's what we know about how Alice Walton spends her fortune, from collecting expensive art to breeding horses:
Alice Walton, the only daughter of Walmart founder Sam Walton, is world's richest woman.Alice Walton is one of Walmart founder Sam Walton's three kids.
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Walton and L'Oréal heiress Françoise Bettencourt Meyers regularly alternate in the #1 spot; Walton recently passed Bettencourt Meyers.
Unlike her brothers, Rob and Jim, Alice Walton has never taken an active role in running Walmart and has instead become a patron of the arts.She isn't active in running the family business.
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Walton fell in love with the arts at a young age, according to a New Yorker profile. When she was 10, she bought her first work of art: a reproduction of a Picasso painting for $2, she told the publication.
After graduating from Trinity University in San Antonio, Texas, in 1971, Walton briefly entered the family business, working for Walmart as a buyer of children's clothes, she told The New Yorker.
She has been married and divorced twice and has no children.
Walton has an immense private art collection, with original works from legendary American artists including Andy Warhol, Norman Rockwell, and Georgia O'Keefe.Walton instead focuses on the arts.
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"Collecting has been such a joy, and such an important part of my life in terms of seeing art, and loving it," she told The New Yorker.
In 2011, she opened a $50 million museum called Crystal Bridges Museum of American Art in Bentonville, Arkansas, to house her $500 million private art collection.The Crystal Bridges Museum of American Art in Bentonville, Arkansas.
In 2014, the Walmart heiress dropped $44.4 million on a piece of artwork by Georgia O'Keeffe.Alice Walton set a record with her purchase of a painting of a flower by Georgia O'Keeffe.
Walton has donated millions to the arts and other causes.Jim Walton, Alice Walton, and Rob Walton cheer at the annual shareholders meeting for Walmart in Fayetteville, Arkansas.
Walton also has her own charitable organization, the Alice L. Walton Foundation, which donates to causes including the arts, education, and health, according to its website.
Walton has also put some of her money into politics.Hillary Clinton was once a Walmart board member.
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She has traditionally given to Republican candidates and PACs, though Walton donated $353,400 to the Hillary Victory Fund, a joint fundraising committee supporting Clinton and other Democrats, in 2016, according to Forbes.
Walton has been active in the horse breeding scene in Texas, but in 2015 she said she was going to devote more of her time to her Crystal Bridges Museum of American Art.Alice sold her Rocking W Ranch in Millsap, Texas, in 2017.
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"I've been stretched in too many directions and I want to get focused," Walton said, according to the Fort Worth Star-Telegram in 2017. "I've got a house in Fort Worth, so I'm moving to town."
In 2017, she sold her Millsap, Texas ranch for an undisclosed amount. The Rocking W Ranch had an initial asking price of $19.75 million but was later reduced to $16.5 million. The working ranch boasted more than 250 acres of pasture and outbuildings for cattle and horses.
She'd also put another Texas ranch, the 4,416-acre Fortune Bend Ranch, on the market around the same time.Walton had multiple Texas ranches.