(Bloomberg) — Uber Technologies Inc. filed for an initial public offering, starting the clock on what’s expected to be the biggest U.S. listing this year. The U.S. ride-hailing giant filed with an initial offering amount of $1 billion, typically a placeholder amount used to calculate fees that will change. The San Francisco-based company applied to list on the New York Stock Exchange under the ticker UBER, according to its filing Thursday with the U.S.