Standard&Poor's Ratings Services assigned its 'AA-' long-term rating to the Michigan Finance Authority's $640.24 million series 2015MI bonds and $100.0 million series 2015MI(FRN) floating-rate notes, to the Idaho Health Facilities Authority's $169.61 million series 2015ID bonds, to Montgomery County, Md.'s $151.06 million series 2015MD bonds, and to the CHE Trinity Health Credit Group, Mich.'s $350.0 million series 2015 taxable bonds, all issued for the CHE Trinity Health Credit Group. (doing business as Trinity Health). In addition, Standard&Poor's affirmed its 'AA-' long-term rating and 'AA-/A-1+' dual rating (where applicable) on various series of bonds previously issued for Trinity Health. The outlook is stable. The 'AA-' rating is based on our view of Trinity's group credit profile (GCP)