| May 04, 2011 |
|
$ 4,900,000,000 |
| Nov 17, 2009 |
|
Undisclosed amount |
| Nov 06, 2009 |
|
Undisclosed amount |
| Nov 19, 2007 |
|
$ 330,000,000 |
| Jun 26, 2007 |
|
$ 483,000,000 |
| Mar 30, 2007 |
|
$ 125,000,000 |
| Jul 07, 2006 |
|
$ 464,000,000 |
| Dec 16, 2004 |
|
Undisclosed amount |
| Dec 14, 2004 |
|
$ 85,000,000 |
| Jun 14, 2004 |
|
Undisclosed amount |
| Apr 29, 2003 |
|
Undisclosed amount |
| Apr 08, 2002 |
|
$ 26,000,000 |
| Dec 04, 2001 |
|
Undisclosed amount |
| Nov 26, 2001 |
|
Undisclosed amount |
| May 30, 2001 |
|
$ 27,000,000 |
| Oct 05, 1999 |
|
Undisclosed amount |
| Dec 10, 1998 |
|
$ 42,000,000 |
| Jan 09, 1997 |
|
$ 110,000,000 |
| Jan 09, 1997 |
|
$ 175,000,000 |