| Date | Acquired | Amount |
|---|---|---|
| Jun 10, 2016 |
|
Undisclosed amount |
| Nov 17, 2015 |
|
$ 7,400,000,000 |
| May 08, 2014 |
|
$ 930,000,000 |
| Jan 27, 2014 |
|
Undisclosed amount |
| Feb 05, 2013 |
|
$ 23,300,000,000 |
| Mar 21, 2011 |
|
Undisclosed amount |
| Dec 06, 2010 |
|
Undisclosed amount |
| Nov 13, 2009 |
|
$ 5,200,000,000 |
