CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (USD $) In Millions, unless otherwise specified	Total	Common shares and paid-in surplus	Retained earnings	AOCI, after-tax	Total	Non-controlling Interests	Total Equity includes Noncontrolling Interest [Member]
Beginning balance at Dec. 31, 2010		$ 1,359.0	$ 2,175.6	$ 118.4	$ 3,653.0	$ 607.8	$ 4,260.8
Increase (Decrease) in Shareholders' Equity
Net income	809.4	0	767.9	0	767.9	41.5	809.4
Net change in unrealized gains (losses) on investments in unconsolidated affiliates, after tax	(58.5)	0	0	(58.5)	(58.5)	0	(58.5)
Change in foreign currency translation, net of tax	(15.2)	0	0	(15.2)	(15.2)	0	(15.2)
Net change in pension liability and other accumulated comprehensive items	(10.8)	0	0	(8.0)	(8.0)	(2.8)	(10.8)
Comprehensive income	683.4	0	767.9	(81.7)	686.2	38.7	724.9
Dividends declared on common shares		0	(8.0)	0	(8.0)	0	(8.0)
Dividends/distributions to non-controlling interests		0	0	0	0	(61.5)	(61.5)
Issuances of common shares		0.9	0	0	0.9	0	0.9
Repurchases and retirements of common shares	(253.0)	(107.2)	(145.8)	0	(253.0)	0	(253.0)
Contribution or Distribution to/ from Non-Controlling Interests		0	0	0	0	(8.6)	(8.6)
Amortization of restricted share and option awards		12.0	0	0	12.0	0.4	12.4
Non-controlling interest attributable to intercompany sale of subsidiary		(3.4)	0	0	(3.4)	3.4	0
Ending balance at Dec. 31, 2011		1,261.3	2,789.7	36.7	4,087.7	580.2	4,667.9
Increase (Decrease) in Shareholders' Equity
Net income	193.4	0	207.4	0	207.4	(14.0)	193.4
Net change in unrealized gains (losses) on investments in unconsolidated affiliates, after tax	57.7	0	0	57.7	57.7	0	57.7
Change in foreign currency translation, net of tax	39.6	0	0	39.6	39.6	0	39.6
Net change in pension liability and other accumulated comprehensive items	(2.9)	0	0	(2.1)	(2.1)	(0.8)	(2.9)
Comprehensive income	301.8	0	207.4	95.2	302.6	(14.8)	287.8
Dividends declared on common shares		0	(6.6)	0	(6.6)	0	(6.6)
Dividends/distributions to non-controlling interests		0	0	0	0	(39.1)	(39.1)
Issuances of common shares		5.8	0	0	5.8	0	5.8
Repurchases and retirements of common shares	(669.1)	(221.3)	(447.8)	0	(669.1)	0	(669.1)
Contribution or Distribution to/ from Non-Controlling Interests		0	0	0	0	1.6	1.6
Amortization of restricted share and option awards		13.6	0	0	13.6	0.8	14.4
Deconsolidation of Hamer and Bri-Mar		0	0	0	0	(4.5)	(4.5)
Allocation of fair value of net assets acquired to non-controlling interests		(2.2)	0	0	(2.2)	2.2	0
Ending balance at Dec. 31, 2012	3,731.8	1,057.2	2,542.7	131.9	3,731.8	526.4	4,258.2
Increase (Decrease) in Shareholders' Equity
Net income	309.4	0	321.8	0	321.8	(12.4)	309.4
Net change in unrealized gains (losses) on investments in unconsolidated affiliates, after tax	(98.1)	0	0	(98.1)	(98.1)	0	(98.1)
Change in foreign currency translation, net of tax	2.7	0	0	2.7	2.7	0	2.7
Net change in pension liability and other accumulated comprehensive items	20.8	0	0	15.6	15.6	5.2	20.8
Comprehensive income	247.2	0	321.8	(79.8)	242.0	(7.2)	234.8
Dividends declared on common shares		0	(6.2)	0	(6.2)	0	(6.2)
Dividends/distributions to non-controlling interests		0	0	0	0	(39.7)	(39.7)
Issuances of common shares		1.0	0	0	1.0	0	1.0
Repurchases and retirements of common shares	(79.8)	(23.8)	(56.0)	0	(79.8)	0	(79.8)
Contribution or Distribution to/ from Non-Controlling Interests		0	0	0	0	11.5	11.5
Amortization of restricted share and option awards		16.7	0	0	16.7	0.9	17.6
Ending balance at Dec. 31, 2013	$ 3,905.5	$ 1,051.1	$ 2,802.3	$ 52.1	$ 3,905.5	$ 491.9	$ 4,397.4