| Dec 22, 2015 |
|
$ 175,000,000 |
| Dec 22, 2014 |
|
Undisclosed amount |
| Dec 10, 2014 |
|
$ 329,500,000 |
| Nov 14, 2013 |
|
Undisclosed amount |
| Jun 19, 2013 |
|
Undisclosed amount |
| Sep 15, 2011 |
|
$ 100,000,000 |
| Jul 20, 2011 |
|
Undisclosed amount |
| Feb 23, 2011 |
|
Undisclosed amount |
| Jan 18, 2010 |
|
Undisclosed amount |
| Jul 16, 2008 |
|
Undisclosed amount |
| Jan 08, 2007 |
|
$ 14,000,000 |
| Jul 05, 2005 |
|
$ 35,000,000 |
| Dec 03, 2001 |
|
$ 650,000,000 |
| Aug 03, 2001 |
|
$ 2,300,000,000 |
| May 03, 2001 |
|
Undisclosed amount |
| Jan 05, 2001 |
|
$ 1,150,000,000 |
| Sep 28, 1999 |
|
$ 1,100,000,000 |
| Jul 18, 1999 |
|
$ 115,000,000 |
| May 20, 1999 |
|
$ 1,400,000,000 |
| May 05, 1999 |
|
Undisclosed amount |
| May 26, 1998 |
|
$ 3,300,000,000 |
| Apr 13, 1998 |
|
Undisclosed amount |
| Aug 27, 1997 |
|
Undisclosed amount |
| May 21, 1997 |
|
Undisclosed amount |
| Apr 11, 1997 |
|
$ 850,000,000 |
| Jul 01, 1996 |
|
$ 214,000,000 |
| Jul 15, 1994 |
|
$ 1,400,000,000 |