Aon has booked a second-quarter net profit of $US1.1 billion ($1.2 billion) with the result buoyed by the completed sales of Combined Insurance and Sterling Life Insurance.

The sales contributed $US2.7 billion ($2.9 billion) in after-tax proceeds and a net gain of $US1 billion ($1.1 billion) as Aon reported a 6% increase in total revenue to $US2 billion ($2.1 billion).

However, net income from continuing operations dipped 8% to $US168 million ($180 million) from $US83 million ($197 million) in the corresponding period last year.