Consolidated Condensed Statements of Comprehensive Income (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Consolidated Condensed Statements of Comprehensive Income (Unaudited) [Abstract]
Net income	$ 16.8	$ 169.7	$ 20.0	$ 291.0
Other comprehensive income:
Net foreign currency translation adjustment	(45.5)	56.3	(15.4)	174.9
Net change in postretirement benefit plans, net of tax impacts of $0.0 $11.9, $0.0 and $23.7, respectively	2.9	19.8	14.4	39.6
Net change in unrealized gains on investment securities, net of tax impacts of $0.0, $2.9, $0.0 and $6.6, respectively	0	(4.8)	0	(10.9)
Other comprehensive income	(42.6)	71.3	(1.0)	203.6
Comprehensive (loss) income	(25.8)	241.0	19.0	494.6
Net change in postretirement benefit plans, net of tax:
Amortization of prior service costs, net of tax benefit of $0.0, $0.2, $0.0 and $0.5, respectively	0.2	0.4	0.4	0.8
Amortization of net actuarial loss, net of tax benefit of $0.0, $11.7, $0.0 and $23.2, respectively	2.7	19.4	5.3	38.8
Unrealized change in net actuarial loss, net of tax expense of $0.0	0	0	8.7	0
Net change in postretirement benefit plans, net of tax	2.9	19.8	14.4	39.6
Net change in unrealized gains on investment securities, net of tax:
Unrealized losses arising during period, net of tax benefit of $0.0, $0.2, $0.0 and $0.5, respectively	0	(0.3)	0	(0.8)
Gains realized during the period, net of tax expense of $0.0, $2.7, $0.0 and $6.1, respectively	0	(4.5)	0	(10.1)
Net change in unrealized gains on investment securities, net of tax	$ 0	$ (4.8)	$ 0	$ (10.9)