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Other Comprehensive Income/(Loss) (Tables)
 12 Months Ended
Dec. 31, 2011
Statement of Income and Comprehensive Income [Abstract]  
Accumulated Other Comprehensive Income
The components of accumulated other comprehensive income/(loss) at December 31 were as follows:
$ in millions
2011
 
2010
 
2009
Net unrealized gains/(losses) on available-for-sale investments
(2.2
)

10.1


5.4

Tax on unrealized gains/(losses) on available-for-sale investments
(0.6
)

(2.4
)

(1.6
)
Accumulated other comprehensive income/(loss) of equity method investments
(4.3
)

2.9


—

Cumulative foreign currency translation adjustments
452.7


524.6


442.0

Tax on cumulative foreign currency translation adjustments
2.5


2.0


2.0

Employee benefit plan liability adjustments
(98.2
)

(55.8
)

(74.5
)
Tax on employee benefit plan liability adjustments
23.4


14.1


20.3

Total accumulated other comprehensive income/(loss)
373.3


495.5


393.6
Total other comprehensive income details
Total other comprehensive income/(loss) details are presented below.
$ in millions
2011
 
2010
 
2009
Net income
622.0


636.8


209.3

Adoption of guidance now encompassed in ASC Topic 320
—


—


(1.5
)
Unrealized holding gains and losses on available-for-sale investments*
(12.2
)

11.5


10.6

Tax on unrealized holding gains and losses on available-for-sale investments
1.7


(2.7
)

(2.8
)
Comprehensive income of equity method investments
(7.2
)

2.9


—

Reclassification adjustments for net (gains) and losses on available-for-sale investments included in net income
(0.1
)

(1.6
)

4.0

Tax on reclassification adjustments for gains (losses) on available-for-sale investments included in net income
0.1


1.9


1.1

Foreign currency translation adjustments**
(48.8
)

77.3


488.3

Tax on foreign currency translation adjustments
0.5


—


0.7

Adjustments to employee benefit plan liability
(42.4
)

18.7


(15.1
)
Tax on adjustments to employee benefit plan liability
9.3


(6.2
)

4.1

Total comprehensive income/(loss)
522.9


738.6


698.7


____________

*
The company adopted guidance now encompassed in ASC Topic 810 on January 1, 2010, resulting in the consolidation of certain CLOs. Upon adoption, accumulated other comprehensive income was reduced by $5.2 million, as accumulated net unrealized gains at January 1, 2010 relating to the company's investments in certain CLOs were reclassified into retained earnings upon their consolidation.
**
Included in this amount are net gains of $23.1 million for the year ended December 31, 2011 related to foreign currency translation adjustments attributable to consolidated investment products (year ended December 31, 2010: net losses of $5.3 million). Of this amount, $8.7 million is reclassified from accumulated other comprehensive income into retained earnings appropriated for investors in consolidated investment products (year ended December 31, 2010: $5.3 million).