Motorola Inc has had a boost from Standard & Poor’s Corp, which raised its ratings on the company’s senior debt to double-A from double-A-minus and subordinated debt to double-A-minus from A-plus, and revised its outlook to stable from positive. It affirmed its A-1-plus rating on Motorola Inc’s and Motorola Credit Corp’s commercial paper; the moves affect about $1,600m of rated debt. No commentary was available on the ratings upgrade.