Summary of Short-Term Borrowings and Long-Term Debt (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2017	Dec. 31, 2016
Short-term borrowings
Commercial paper issuances	$ 582.2	$ 420.0
Various debt due to international banks	3.5	6.8
Total short-term borrowings	585.7	426.8
Long-term debt
Debt issuance costs, net	(6.1)	(6.5)
Fair value adjustment related to hedged fixed rate debt instrument	(0.7)	0.2
Net long-term debt	692.9	693.4
2.875% Senior notes due October 1, 2022
Long-term debt
Senior notes	400.0	400.0
Less: Discount	(0.2)	(0.2)
2.45% Senior notes due December 15, 2019
Long-term debt
Senior notes	300.0	300.0
Less: Discount	$ (0.1)	$ (0.1)

Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

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-Section S99
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