Barra posted a photo of the moment on his account with China's Weibo microblog service
The rouble strengthened and Russian shares pared losses
The new company will be among the world's five largest reinsurers, with more than $10 billion in combined policy sales
Crude oil pared losses after the Organization of Petroleum Exporting Countries (Opec) Secretary- General Abdalla El-Badri said insufficient investment could push prices to $200 a barrel