Xerox Holdings Corporation had a solid year in 2020, as it reported 2020 fourth-quarter and full-year results and guidance for 2021.   Xerox reported $1.93 billion in revenue in Q4 2020, which was an increase of 9.2% compared to Q3 and down 21% year over year. For the full year, Xerox had $7.022 billion of revenue, down 22.5% year over year.   The company reported $221 million of free cash flow in Q4, up $133 million from Q3 and down $160 million year over year. For all of 2020, the comp...