The Council of Trent – an official gathering of Roman Catholic Church leaders – was held from 1545 to 1563. In its fourth session (April 4th, 1546), it affirmed the New Testament canon that had already been in place and uncontroversial since ancient times.
Of the New Testament: the four Gospels, according to Matthew, Mark, Luke, and John; the Acts of the Apostles written by Luke the Evangelist; fourteen epistles of Paul the apostle, (one) to the Romans, two to the Corinthians, (one) to the Galatians, to the Ephesians, to the Philippians, to the Colossians, two to the Thessalonians, two to Timothy, (one) to Titus, to Philemon, to the Hebrews; two of Peter the apostle, three of John the apostle [ 1, 2, 3 ], one of the apostle James, one of Jude the apostle, and the Apocalypse of John the apostle.
This is the first, and only, ecumenical church council convened for the purpose, even in part, of resolving disagreements about the biblical canon..and even it, because it was Roman Catholic, did not involve Protestant or Eastern Orthodox Christianity. While there is a dispute among these three main branches of Christianity about whether the Apocrypha should be included with the Old Testament, there is no such dispute about the contents New Testament.