Buying Willis Towers might enable Aon to overtake Marsh & McLennan Cos. as the world's largest brokerage by revenue.

Even if wearing a fitness tracker doesn't by itself make anyone live longer, there may be a more subtle advantage for insurers.

The complaint says MetLife sent 2 letters to customers. If no response, the insurer presumed they were dead.

The choice Dimon, Bezos, and Buffett have made implies that the health care company will take a broad look at fixing health care.

"We should have an announcement on that matter within maybe two weeks,” Buffet said.

Warren Buffett's health-care venture has far bigger plans than simply squeezing middlemen for better prices, the billionaire said.

Warren Buffetts health-care venture has far bigger plans than simply squeezing middlemen for better prices, the billionaire said.

MetLife's failure to keep track of what the company now says is 2 percent of its pension clients, or about 13,500 individuals alarms some state and federal officials.