Winfrey shared the news while appearing in the late journalist's new documentary 'Barbara Walters: Tell Me Everything'

A new documentary about Walters explores the often strained relationship between the veteran journalist and her daughter, Jacqueline Guber

She continued, “Both are sacrifices. Sacrifice to do the work and it's also sacrifice to be the mother and to say, ‘No, let somebody else have that.’” Despite the decision, Oprah noted that Barbara never shied away from her responsibilities.