| Date | Acquired | Amount |
|---|---|---|
| Aug 28, 2017 |
|
$ 11,900,000,000 |
| Apr 04, 2016 |
|
Undisclosed amount |
| May 06, 2015 |
|
$ 65,000,000 |
| Jan 06, 2015 |
|
$ 470,000,000 |
| Feb 08, 2013 |
|
$ 487,600,000 |
| Nov 21, 2011 |
|
$ 11,000,000,000 |
| Feb 22, 2011 |
|
$ 375,000,000 |
| Dec 20, 2010 |
|
Undisclosed amount |
| Jun 25, 2010 |
|
$ 120,000,000 |
| Apr 17, 2009 |
|
$ 1,390,000,000 |
| Sep 08, 2007 |
|
$ 48,300,000 |
| Nov 03, 2006 |
|
$ 133,400,000 |
| Oct 22, 2006 |
|
$ 415,500,000 |
| Oct 02, 2006 |
|
$ 2,500,000,000 |
| Jan 23, 2003 |
|
$ 525,200,000 |
| Jul 29, 1999 |
|
Undisclosed amount |
