| Date | Acquired | Amount |
|---|---|---|
| Sep 01, 2016 |
|
Undisclosed amount |
| Mar 17, 2016 |
|
Undisclosed amount |
| Aug 25, 2015 |
|
$ 410,000,000 |
| Jul 16, 2015 |
|
Undisclosed amount |
| Jul 06, 2015 |
|
$ 1,115,000,000 |
| Mar 02, 2015 |
|
$ 2,000,000,000 |
| Apr 02, 2014 |
|
Undisclosed amount |
| Feb 14, 2013 |
|
$ 2,069,999,999 |
| Aug 03, 2012 |
|
Undisclosed amount |
| Jul 23, 2012 |
|
Undisclosed amount |
| Nov 18, 2010 |
|
$ 1,300,000,000 |
| Jul 30, 2010 |
|
Undisclosed amount |
| Jun 10, 2010 |
|
$ 517,000,000 |
| Aug 01, 2008 |
|
Undisclosed amount |
| Mar 04, 2008 |
|
$ 490,000,000 |
| May 14, 2007 |
|
$ 1,500,000,000 |
| Oct 18, 2006 |
|
Undisclosed amount |
| Jul 12, 2006 |
|
Undisclosed amount |
| Apr 01, 2006 |
|
Undisclosed amount |
| Mar 24, 2006 |
|
Undisclosed amount |
| Jul 02, 2004 |
|
Undisclosed amount |
| May 19, 2004 |
|
$ 2,000,000,000 |
| Oct 01, 2003 |
|
Undisclosed amount |
| Dec 04, 2002 |
|
$ 1,100,000,000 |
| Jun 27, 2002 |
|
$ 200,000,000 |
| Apr 04, 2002 |
|
Undisclosed amount |
| Dec 04, 2000 |
|
$ 1,670,000,000 |
| Jun 26, 2000 |
|
$ 181,000,000 |
| Sep 13, 1999 |
|
Undisclosed amount |
| Feb 03, 1999 |
|
Undisclosed amount |
| May 19, 1998 |
|
Undisclosed amount |
| Nov 29, 1996 |
|
Undisclosed amount |
| Jul 25, 1996 |
|
Undisclosed amount |
| Feb 08, 1996 |
|
Undisclosed amount |
| Aug 29, 1995 |
|
Undisclosed amount |
