Summary of Short-Term Borrowings and Long-Term Debt (Details) - USD ($) $ in Millions		Dec. 31, 2015	Dec. 31, 2014
Short-term borrowings
Commercial paper issuances		$ 354.5	$ 143.3
Various debt due to international banks		2.7	3.4
Total short-term borrowings		357.2	146.7
Long-term debt
Debt issuance costs, net	[1]	(8.1)	(8.6)
Fair value adjustment related to hedged fixed rate debt instrument		1.3	(0.9)
Total long-term debt		692.8	939.9
Less: current maturities		0.0	(249.9)
Net long-term debt		692.8	690.0
2.875% Senior notes due October 1, 2022
Long-term debt
Senior notes		400.0	400.0
Less: Discount		(0.3)	(0.3)
3.35% Senior notes due December 15, 2015
Long-term debt
Senior notes		0.0	250.0
Less: Discount		0.0	(0.1)
2.45% Senior notes due December 15, 2019
Long-term debt
Senior notes		300.0	300.0
Less: Discount		$ (0.1)	$ (0.2)

[1] The Company retrospectively adopted new accounting guidance requiring all deferred tax assets to be classified as noncurrent. See Note 1 for further details.