The followers of the world’s largest religion have not preserved their unity and are split into tens of thousands of denominations. Conventionally, all Christians can be divided into 4 main areas:

Catholics unite more than half of the Christians in the world (1.2 billion). The vast majority of Catholics are members of the Roman Catholic Church.
Protestants are the second largest trend in Christianity and have 800 million believers. The largest denomination within Protestantism is represented by Pentecostals (279 million).
Other large Protestant groups, each with tens of millions of followers, are Anglicans, Baptists, Lutherans, Methodists, Presbyterians with Reformed, and others.
The Orthodox and believers of the pre-Chalcedonian churches are conventionally united into the third direction of Christianity. This trend includes believers from 15 autocephalous Orthodox churches (180-227 million), believers of pre-Chalcedonian (“ancient Eastern”) churches (70 million) and supporters of churches not recognized by world (canonical) Orthodoxy (17 million).
Marginalized Christians have 33 million followers. In this direction, unrelated para-Christian groups (Mormons, Jehovah’s Witnesses, etc.) are united.

Christians make up the majority of the population of Europe, North and Latin America, Oceania. In Africa, the proportion of Christians has reached 47.9%; in Asia, followers of Christ make up only 8.5% of the population (278 million believers).