Davis Polk advised the underwriters in connection with an SEC-registered offering by Aon plc of $400 million aggregate principal amount of 2.800% senior notes due 2021. The notes are fully and unconditionally guaranteed by Aon Corporation (an indirect wholly owned subsidiary of Aon plc).

Headquartered in London, England, Aon plc is a preeminent professional service firm, focused on the topics of risk and people. Aon plc is the leading global provider of risk management services, insurance and reinsurance brokerage, and human resource consulting and outsourcing, delivering distinctive client value via innovative and effective risk management and workforce productivity solutions.

The Davis Polk corporate team included partner John G. Crowley, associates Judah Bareli and Zuo (Zoey) Yi. The tax team included partners Michael Farber and Jonathan Cooklin and associates Dominic Foulkes and Brian Harris. Members of the Davis Polk team are based in the New York and London offices.