The ongoing Covid-19 pandemic propelled pharmaceutical company Pfizer's earnings to a record $100 billion last year, almost $57 billion of which was driven by its vaccine and antiviral pill Paxlovid, the company reported Tuesday. Pfizer told investors to expect revenue to decline in 2023 by as much as 33% to between $67 billion and $71 billion as the world emerges from the pandemic and demand for its blockbuster Covid drugs slows. Global Business and Financial News, Stock Quotes, and Market Data and Analysis