NEW YORK (Standard&Poor's) Jan. 26, 2012--Standard&Poor's Ratings Services said today that it assigned its 'AA+' senior debt ratings to Berkshire Hathaway Inc.'s (BRK; AA+/Negative/A-1+) $1.7 billion senior unsecured notes. BRK will issue the notes in two tranches: $1.1 billion 1.9% senior unsecured notes due Jan. 31, 2017, and $600 million 3.4% senior unsecured notes due Jan. 31, 2022. BRK will use the net proceeds of this issuance for general corporate purposes, including repayment of all or a portion of $1.7 billion of notes maturing on Feb. 10, 2012. BRK's adjusted debt leverage and interest coverage (excluding the separately rated subsidiaries MidAmerican Energy Holdings Co. (BBB+/Stable/--) and Burlington Northern Santa Fe LLC (BBB+/Stable/A-2) and the borrowings used
