Walters, who created the popular ABC women's talk show The View in 1997, died Friday at her home in New York, Robert Iger, chief executive of ABC's corporate parent, the Walt Disney Co., said on Twitter.
In a broadcast career spanning five decades, Walters interviewed an array of world leaders, including Cuba's Fidel Castro, Britain's Margaret Thatcher, Libyan ruler Moammar Gadhafi, Saddam Hussein of Iraq and every U.S. president and first lady since Richard and Pat Nixon.
United States President Joe Biden sent a condolence message via Twitter, describing Walters as "an example of bravery and truth."
Walters, who began her journalism career on NBC's The Today Show in the 1960s as a writer and segment producer, earned 12 Emmy awards, 11 of those while at ABC News, the network said.
She made broadcast history as the first woman co-anchor on a U.S. evening newscast, opposite Harry Reasoner.