OTHER COMPREHENSIVE INCOME/(LOSS) (Tables)

9 Months Ended

Sep. 30, 2021

Equity [Abstract]

Accumulated Other Comprehensive Income/(Loss)

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

	For the three months ended September 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	(108.7)	—	—	—	(108.7)
Other comprehensive income, net	—	1.2	—	—	1.2
Other comprehensive income/(loss), net of tax	(108.7)	1.2	—	—	(107.5)
Beginning balance	(243.6)	(126.9)	0.1	0.6	(369.8)
Other comprehensive income/(loss), net of tax	(108.7)	1.2	—	—	(107.5)
Ending balance	(352.3)	(125.7)	0.1	0.6	(477.3)

	For the nine months ended September 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	(73.0)	—	—	—	(73.0)
Other comprehensive income, net	—	0.3	—	(0.1)	0.2
Other comprehensive income/(loss), net of tax	(73.0)	0.3	—	(0.1)	(72.8)
Beginning balance	(279.3)	(126.0)	0.1	0.7	(404.5)
Other comprehensive income/(loss), net of tax	(73.0)	0.3	—	(0.1)	(72.8)
Ending balance	(352.3)	(125.7)	0.1	0.6	(477.3)

	For the three months ended September 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	167.4	—	—	—	167.4
Other comprehensive income, net	—	0.7	—	—	0.7
Other comprehensive income/(loss), net of tax	167.4	0.7	—	—	168.1
Beginning balance	(690.8)	(125.9)	0.1	0.6	(816.0)
Other comprehensive income/(loss), net of tax	167.4	0.7	—	—	168.1
Ending balance	(523.4)	(125.2)	0.1	0.6	(647.9)

	For the nine months ended September 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	(61.4)	—	—	—	(61.4)
Other comprehensive income, net	—	0.9	—	(0.1)	0.8
Other comprehensive income/(loss), net of tax	(61.4)	0.9	—	(0.1)	(60.6)
Beginning balance	(462.0)	(126.1)	0.1	0.7	(587.3)
Other comprehensive income/(loss), net of tax	(61.4)	0.9	—	(0.1)	(60.6)
Ending balance	(523.4)	(125.2)	0.1	0.6	(647.9)