| Aug 07, 2017 |
|
$ 2,000,000,000 |
| Feb 06, 2017 |
|
Undisclosed amount |
| Nov 01, 2016 |
|
Undisclosed amount |
| Sep 02, 2016 |
|
Undisclosed amount |
| Oct 22, 2014 |
|
Undisclosed amount |
| Jun 28, 2014 |
|
Undisclosed amount |
| Aug 02, 2011 |
|
$ 1,700,000,000 |
| Mar 09, 2011 |
|
Undisclosed amount |
| Nov 01, 2007 |
|
$ 200,000,000 |
| Feb 15, 2007 |
|
Undisclosed amount |
| May 04, 2005 |
|
Undisclosed amount |