PayPal Holdings, Inc. is an American company operating a worldwide online payments system that supports online money transfers and serves as an electronic alternative to traditional paper methods like checks and money orders. The company operates as a payment processor for online vendors, auction sites, and many other commercial users, for which it charges a fee in exchange for benefits such as one-click transactions and password memory. Established in 1998 as Confinity,[10] PayPal had its initial public offering in 2002. It became a wholly owned subsidiary of eBay later that year, valued at $1.5 billion.[11][12] eBay spun off PayPal in 2015 to eBay's shareholders.[5][13] The company ranked 204th on the 2019 Fortune 500 of the largest United States corporations by revenue.[14]