After walking away with $36.6 billion from her divorce settlement with Amazon founder Jeff Bezos last month, MacKenzie Bezos has committed to donating half of her massive fortune to charity.

MacKenzie Bezos, an author and the founder and executive director of anti-bullying organization Bystander Revolution, signed The Giving Pledge earlier this month, following in the footsteps of dozens of other billionaires.

The pledge, created by Warren Buffett and Bill and Melinda Gates in 2010, is a non-legally binding vow made by some of the worlds wealthiest individuals and families to give away at least half of their wealth to charitable causes during their lifetime or in their will.

Over 204 wealthy individuals, couples and families across 23 countries have signed the agreement, including former New York City mayor and media mogul Michael Bloomberg, SpaceX founder and CEO Elon Musk and Facebook founder and CEO Mark Zuckerberg.