Billionaire Philip Anschutz is moving ahead with plans to build a $1 billion stadium in Los Angeles and lure two National Football League teams.

Anshutz’s AEG Worldwide will release a 10,000-page environmental-impact report next week, said Michael Roth, a spokesman for the closely held, Los Angeles-based company. AEG spent about $27 million preparing the report, a required step in the approval process, and designing the 60,000-seat stadium, named Farmers Field, Roth said.