South Africa, June 27 -- Wintour, 75, shared the news during a staff meeting on Thursday. The move doesn't signal her departure-it marks a step up, as she transitions into an even more elevated role within the brand.

While Wintour will continue in her roles as chief content officer for Conde Nast-overseeing editorial for brands including WIRED, Vanity Fair, GQ, AD, Conde Nast Traveler, Glamour, Bon Appetit, Tatler, World of Interiors, Allure, Teen Vogue, Ars Technica, and Them globally-as well as global editorial director for Vogue, Vogue US's new head of editorial content will lead the magazine's daily operations across platforms.

The person who fills that role will report directly to Wintour, in keeping with the heads of editorial con...