...NEW YORK (S&P Global Ratings) Feb. 12, 2019--S&P Global Ratings today assigned its '##-' issue-level rating to 3M Co.'s proposed $2 billion (in aggregate) medium-term notes, which the company will issue in various tranches. 3M will use the proceeds from these notes for general corporate purposes, which could include the payment of its $625 million medium-term notes due June 2019 and borrowings under its commercial paper program. All of our other ratings on 3M remain unchanged. RELATED CRITERIA + Criteria - Corporates - General: Reflecting Subordination Risk In Corporate Issue Ratings, March 28, 2018 + General Criteria: Methodology For Linking Long-Term And Short-Term Ratings , April 7, 2017 + Criteria | Corporates | General: Methodology And Assumptions: Liquidity Descriptors For Global Corporate Issuers, Dec. 16, 2014 + General Criteria: Group Rating Methodology, Nov. 19, 2013 + Criteria | Corporates | General: Corporate Methodology: Ratios And Adjustments, Nov. 19, 2013 + Criteria | Corporates...