| Date | Acquired | Amount |
|---|---|---|
| Sep 07, 2017 |
|
$ 75,000,000 |
| Dec 12, 2016 |
|
$ 470,000,000 |
| Dec 12, 2016 |
|
$ 100,000,000 |
| Apr 01, 2016 |
|
Undisclosed amount |
| Dec 14, 2015 |
|
$ 15,400,000,000 |
| Oct 05, 2015 |
|
Undisclosed amount |
| Dec 01, 2014 |
|
$ 210,000,000 |
| Oct 17, 2014 |
|
Undisclosed amount |
| Mar 15, 2011 |
|
Undisclosed amount |
| Apr 01, 2008 |
|
Undisclosed amount |
| Feb 27, 2008 |
|
$ 445,000,000 |
| Jul 28, 2005 |
|
$ 730,000,000 |
| Jan 01, 2003 |
|
Undisclosed amount |
| Apr 30, 2002 |
|
$ 467,000,000 |
| Aug 22, 2000 |
|
Undisclosed amount |
| Jan 24, 2000 |
|
Undisclosed amount |
| Jan 19, 1996 |
|
Undisclosed amount |
| Nov 02, 1995 |
|
Undisclosed amount |
| Oct 02, 1995 |
|
Undisclosed amount |
