| Jul 20, 2016 |
|
Undisclosed amount |
| May 20, 2016 |
|
Undisclosed amount |
| Feb 03, 2016 |
|
$ 895,000,000 |
| Mar 04, 2015 |
|
Undisclosed amount |
| Jan 16, 2015 |
|
Undisclosed amount |
| Sep 04, 2014 |
|
Undisclosed amount |
| Aug 11, 2014 |
|
Undisclosed amount |
| Jun 18, 2014 |
|
$ 1,700,000,000 |
| Apr 03, 2012 |
|
Undisclosed amount |
| Jul 13, 2010 |
|
$ 1,250,000,000 |
| Jan 28, 2010 |
|
$ 62,000,000 |