Melinda French Gates says she will be donating $1 billion over the next two years to individuals and organizations working on behalf of women and families globally, including on reproductive rights in the United States.

French Gates earlier this month announced she would step down from the Bill & Melinda Gates Foundation, and vowed to focus on women and families. As a part of leaving the Gates Foundation, French Gates received $12 billion from Bill Gates for her philanthropy going forward.

French Gates, one of the biggest philanthropic supporters of gender equity in the U.S., said Tuesday in a guest essay for The New York Times that she’s been frustrated over the years by people who say it’s not the right time to talk about gender equality.

“Decades of research on economics, well-being and governance make it clear that investing in women and girls benefits everyone,” she wrote.