Pensions and Postretirement Benefits Other Than Pensions (Schedule of Pretax Amounts Recognized in Accumulated Other Comprehensive Income or (Loss)) (Details) - Pension Plans [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Balance at December 31, 2013	$ (851.8)
Current year changes recorded to Accumulated other comprehensive income (loss)	(40.9)
Amortization reclassified to earnings	59.3
Settlements/curtailments reclassified to earnings	(4.5)	$ (2.3)	$ (5.6)
Currency translation and other	(1.4)
Balance at December 31, 2014	(832.6)	(851.8)
Net Actuarial Losses [Member]
Balance at December 31, 2013	(820.6)
Current year changes recorded to Accumulated other comprehensive income (loss)	(35.2)
Amortization reclassified to earnings	54.3
Settlements/curtailments reclassified to earnings	2.2
Currency translation and other	(0.9)
Balance at December 31, 2014	(800.2)	(820.6)
Pension and OPEB Adjustments [Member]
Settlements/curtailments reclassified to earnings	2.2
Prior Service Cost [Member]
Balance at December 31, 2013	(31.2)
Current year changes recorded to Accumulated other comprehensive income (loss)	(5.7)
Amortization reclassified to earnings	5.0
Settlements/curtailments reclassified to earnings	0.0
Currency translation and other	(0.5)
Balance at December 31, 2014	$ (32.4)	$ (31.2)