Shareholders' Equity and Comprehensive Earnings (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Accumulated Other Comprehensive Earnings (Loss)
Balance at the beginning of the period	$ (352.4)
Other comprehensive earnings (loss) before reclassifications	(11.1)
Amounts reclassified from accumulated other comprehensive earnings (loss)	35.4
Balance at the end of the period	(328.1)
Foreign Currency Translation
Accumulated Other Comprehensive Earnings (Loss)
Balance at the beginning of the period	117.5
Other comprehensive earnings (loss) before reclassifications	29.7
Balance at the end of the period	147.2
Pension and Other Postretirement Benefits (Net of Tax)
Accumulated Other Comprehensive Earnings (Loss)
Balance at the beginning of the period	(461.0)
Other comprehensive earnings (loss) before reclassifications	(3.8)
Amounts reclassified from accumulated other comprehensive earnings (loss)	21.5
Balance at the end of the period	(443.3)
Effective Derivatives (Net of Tax)
Accumulated Other Comprehensive Earnings (Loss)
Balance at the beginning of the period	(8.9)
Other comprehensive earnings (loss) before reclassifications	(37.0)
Amounts reclassified from accumulated other comprehensive earnings (loss)	13.9
Balance at the end of the period	$ (32.0)