Components of Changes in Accumulated Other Comprehensive Income (Loss) (Parenthetical) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	[1]	Dec. 31, 2018	[2]	Dec. 31, 2017
Accumulated Other Comprehensive Income Loss [Line Items]
Amounts reclassified to consolidated statement of income	$ 8.0		$ (0.0)		$ 14.5	[1],[3]
International Defined Benefit Pension Plans
Accumulated Other Comprehensive Income Loss [Line Items]
Amounts reclassified to consolidated statement of income	$ (0.0)		$ (0.0)		11.9	[1],[3]
International Defined Benefit Pension Plans | Selling, General and Administrative Expenses
Accumulated Other Comprehensive Income Loss [Line Items]
Amounts reclassified to consolidated statement of income					$ 11.9

[1] Amounts reclassified to cost of sales, selling, general and administrative expenses, or interest expense.

[2] Amounts reclassified to cost of sales or interest expense.

[3] In connection with the termination of international defined benefit pension plans, $11.9 was reclassified to SG&A.  All other amounts were reclassified to cost of sales.