The minority stake in AerCap is currently worth about $2 billion, the people said, bringing the total price under discussion to roughly $5 billion.

The proposed deal would create the world's largest aircraft-leasing company by fleet size, according to the Journal.

6.-- Google acquired its eighth robotics company this year, buying Boston Dynamics , the engineering company that has designed mobile research robots for the Pentagon.

7.-- Smartphone maker BlackBerry is losing two more high-level executives under the leadership of interim CEO John Chen. 

Chris Wormald, head of BlackBerry's mergers and acquisitions, is leaving by the end of December, the Journal reported, while Rick Costanzo, executive vice president of global sales, will depart early in 2014.