...WASHINGTON D.C. (S&P Global Ratings) Oct. 29, 2018--S&P Global Ratings today assigned its 'A' issue-level rating to Seattle-based aircraft manufacturer and defense contractor Boeing Co.'s proposed $700 million senior unsecured notes. The company plans to issue the notes in two tranches due 2028 and 2048. We expect that the company will use the proceeds from the proposed notes for general corporate purposes. We do not believe that the transaction will significantly alter Boeing's credit metrics; therefore all of our other ratings on the company remain unchanged. Our ratings on Boeing reflect its position as one of the two global producers of large commercial jetliners and as one of the largest U.S. defense contractors. They also reflect the cyclical and competitive nature of the commercial aviation market, the possible budget pressures affecting U.S. defense spending, and the significant investments required to develop new aircraft. We expect that Boeing's credit ratios, which are currently...