| Nov 17, 2017 |
|
Undisclosed amount |
| Jul 17, 2017 |
|
£ 117,000,000 |
| Oct 17, 2016 |
|
$ 1,030,000,000 |
| May 28, 2015 |
|
Undisclosed amount |
| Dec 22, 2014 |
|
Undisclosed amount |
| Oct 13, 2014 |
|
Undisclosed amount |
| Jul 20, 2014 |
|
£ 73,000,000 |
| Nov 18, 2013 |
|
Undisclosed amount |
| Oct 31, 2013 |
|
Undisclosed amount |
| Apr 24, 2013 |
|
$ 469,000,000 |
| Jul 13, 2012 |
|
Undisclosed amount |