Other Income, net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Significant components of Other (expense) income, net
Other (expense) income, net	$ (3.6)	$ 10.8	$ 3.9
Investment income from life insurance policies
Significant components of Other (expense) income, net
Other (expense) income, net	55.3	51.3	48.8
Interest expense on life insurance policy loans
Significant components of Other (expense) income, net
Other (expense) income, net	(57.4)	(52.5)	(47.8)
Gain on acquisition achieved in stages
Significant components of Other (expense) income, net
Other (expense) income, net		11.4
Life insurance policy cost of insurance
Significant components of Other (expense) income, net
Other (expense) income, net	(10.1)	(9.2)	(8.5)
Income from life insurance policy redemptions
Significant components of Other (expense) income, net
Other (expense) income, net	4.2		5.0
Foreign currency transaction (losses) gains
Significant components of Other (expense) income, net
Other (expense) income, net		3.1	(2.6)
Rental income
Significant components of Other (expense) income, net
Other (expense) income, net	1.9	1.9	2.9
Interest income
Significant components of Other (expense) income, net
Other (expense) income, net	1.0	1.4	1.0
Equity in earnings of unconsolidated entities
Significant components of Other (expense) income, net
Other (expense) income, net		2.2	2.3
All other, net
Significant components of Other (expense) income, net
Other (expense) income, net	$ 1.5	$ 1.2	$ 2.8