Analysis of information sources in references of the Wikipedia article "List of Christian denominations" in English language version.
Today these churches are also referred to as the Oriental Orthodox Churches and are made up of 50 million Christians.
Christian total 2,631,941,000, Catholic total 1,278,009,000 (48.6%), Wider Protestant total including Independents 1,047,295,000 (39.8%), Orthodox total including Eastern and Oriental 293,158,000 (11.1%)
For example, Christianity comprises six major groups: Church of the East, Oriental Orthodoxy, Eastern Orthodoxy, Roman Catholicism, Protestantism and Restorationism.
Oriental Orthodoxy has separate self-governing jurisdictions in Ethiopia, Egypt, Eritrea, India, Armenia and Syria, and it accounts for roughly 20% of the worldwide Orthodox population.
Eastern Orthodoxy is split into 15 jurisdictions heavily centered in Central and Eastern Europe, accounting for the remaining 80% of Orthodox Christians.
Not A Denomination: For this reason, we are not interested in man-made creeds, but simply in the New Testament pattern. We do not conceive of ourselves as being a denomination–nor as Catholic, Protestant, or Jewish—but simply as members of the church which Jesus established and for which he died. And that, incidentally, is why we wear his name. The term "church of Christ" is not used as a denominational designation, but rather as a descriptive term indicating that the church belongs to Christ.