WASHINGTON (AP) — Testifying in the biggest U.S. antitrust case in a quarter century, Google CEO Sundar Pichai defended his company’s practice of paying Apple and other tech companies to make Google the default search engine on their devices, saying the intent was to make the user experience “seamless and easy.’’ The Department of Justice contends that Google — a company whose very name is synonymous with scouring the internet — pays off tech companies to lock out rival search engines to smother competition and innovation. According to court documents the government entered into the record last week, the payments came to more than $26 billion in 2021, a year in which operating expenses for Google's parent company, Alphabet, were nearly $68 billion. Google contends that it dominates the market because its search engine is better than the competition's.