NEW YORK (Standard&Poor's) June 7, 2016--S&P Global Ratings today assigned its 'BBB' issue-level rating (the same as the 'BBB' corporate credit rating) on Bethesda, Md.-based Marriott International Inc.'s proposed aggregate $1.5 billion senior unsecured notes offering. The proposed offering will be split into two tranches, comprised of six-year notes and 10-year notes. Marriott plans to use the proceeds of the proposed notes offering to finance a portion the $3.6 billion in cash consideration for the company's pending merger with Starwood Hotels&Resorts Worldwide Inc. Marriott is in the process of amending its credit facility to increase its size to $4 billion and extend the expiration to 2021. Availability under the proposed expanded revolver would finance much of