Despite their many shared beliefs, not all Christian denominations agree on all doctrines, and both major and minor differences on teachings and beliefs have persisted throughout Christianity for centuries.
Kendati banyak keyakinan bersama di antara mereka, tidak semua denominasi Kristen sependapat atas semua doktrin; terdapat perbedaan-perbedaan besar maupun kecil seputar ajaran-ajaran dan keyakinan-keyakinan tersebut sepanjang sejarah Kekristenan selama berabad-abad.