Ratings agency AM Best has affirmed its ratings for the property and casualty subsidiaries of XL Group, with a financial strength rating (FSR) of A (Excellent) and issuer credit rating (ICR) of "a+". The FSR outlook remains stable, while the ICR outlook was revised from negative to stable. Meanwhile, XLIT Ltd has had its ICR and issue rating outlooks revised to stable from negative. Its ICR and issue ratings of "bbb+" were affirmed. XL, the recently formed ultimate holding company that completed XL's redomestication to Bermuda from Ireland was assigned an ICR of "bbb+" with a stable outlook. The "bbb+" of XL Group plc (Ireland) has been withdrawn. Catlin Insurance Company Ltd. (CICL) (Bermuda), the lead operating entity of the Catlin group of companies, and its insurance subsidiaries, had its ICR upgraded from "a" to "a+", and its FSR of A was affirmed.