| Date | Acquired | Amount |
|---|---|---|
| Aug 03, 2016 |
|
$ 2,500,000,000 |
| Jun 30, 2016 |
|
Undisclosed amount |
| Oct 01, 2014 |
|
Undisclosed amount |
| Aug 02, 2012 |
|
Undisclosed amount |
