AgencyRatingOutlookDate
S&PAA+ Stable Aug 26 2022
S&PAA+ Positive Feb 25 2022
Moody'sAa1 Stable Jun 24 2016
Moody'sAaa Negative Oct 23 2015
S&PAA+ Stable Jan 29 2013
S&PAA+ Negative Jan 13 2012
S&PAAA Negative Watch Dec 05 2011
DBRSAAA Stable Jun 21 2011
S&PAAA Stable Jun 26 1989
Moody'sAaa Stable Jun 26 1977
S&PAAA N/A Jul 09 1975