Other Comprehensive Income/(Loss) (Tables)

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

Accumulated Other Comprehensive Income

The components of accumulated other comprehensive income/(loss) were as follows:

	For the three months ended June 30, 2021
$ in millions	Foreign currency translation	Employee benefit plans	Equity method investments	Available-for-sale investments	Total
Other comprehensive income/(loss), net of tax:
Currency translation differences on investments in foreign subsidiaries	34.9	—	—	—	34.9
Other comprehensive income, net	—	3.1	—	(0.1)	3.0
Other comprehensive income/(loss), net of tax	34.9	3.1	—	(0.1)	37.9
Beginning balance	(278.5)	(130.0)	0.1	0.7	(407.7)
Other comprehensive income/(loss), net of tax	34.9	3.1	—	(0.1)	37.9
Ending balance	(243.6)	(126.9)	0.1	0.6	(369.8)

	For the six months ended June 30, 2021
$ in millions	Foreign currency translation	Employee benefit plans	Equity method investments	Available-for-sale investments	Total
Other comprehensive income/(loss), net of tax:
Currency translation differences on investments in foreign subsidiaries	35.7	—	—	—	35.7
Other comprehensive income, net	—	(0.9)	—	(0.1)	(1.0)
Other comprehensive income/(loss), net of tax	35.7	(0.9)	—	(0.1)	34.7
Beginning balance	(279.3)	(126.0)	0.1	0.7	(404.5)
Other comprehensive income/(loss), net of tax	35.7	(0.9)	—	(0.1)	34.7
Ending balance	(243.6)	(126.9)	0.1	0.6	(369.8)

	For the three months ended June 30, 2020
$ in millions	Foreign currency translation	Employee benefit plans	Equity method investments	Available-for-sale investments	Total
Other comprehensive income/(loss), net of tax:
Currency translation differences on investments in foreign subsidiaries	86.2	—	—	—	86.2
Other comprehensive income, net	—	3.3	—	—	3.3
Other comprehensive income/(loss), net of tax	86.2	3.3	—	—	89.5
Beginning balance	(777.0)	(129.2)	0.1	0.6	(905.5)
Other comprehensive income/(loss), net of tax	86.2	3.3	—	—	89.5
Ending balance	(690.8)	(125.9)	0.1	0.6	(816.0)

	For the six months ended June 30, 2020
$ in millions	Foreign currency translation	Employee benefit plans	Equity method investments	Available-for-sale investments	Total
Other comprehensive income/(loss), net of tax:
Currency translation differences on investments in foreign subsidiaries	(228.8)	—	—	—	(228.8)
Other comprehensive income, net	—	0.2	—	(0.1)	0.1
Other comprehensive income/(loss), net of tax	(228.8)	0.2	—	(0.1)	(228.7)
Beginning balance	(462.0)	(126.1)	0.1	0.7	(587.3)
Other comprehensive income/(loss), net of tax	(228.8)	0.2	—	(0.1)	(228.7)
Ending balance	(690.8)	(125.9)	0.1	0.6	(816.0)