Long-term Debt

The Company has fixed-rate notes with 5-year and 10-year maturities for an aggregate principal amount of $2.0 billion (collectively the “Notes”). The Notes are senior unsecured obligations, and interest is payable in arrears, semi-annually.

The principal amounts and associated effective interest rates of the Notes and other debt as of March 31, 2018 and June 30, 2017, are as follows:



Debt instrument	Effective Interest Rate	March 31, 2018			June 30, 2017
Fixed-rate 2.250% notes due September 15, 2020	2.37%	$	1,000.0		$	1,000.0
Fixed-rate 3.375% notes due September 15, 2025	3.47%	1,000.0			1,000.0
Other		13.6			20.3
		2,013.6			2,020.3
Less: current portion		(2.5		)	(7.8		)
Less: unamortized discount and debt issuance costs		(8.7		)	(10.1		)
Total long-term debt		$	2,002.4		$	2,002.4

The effective interest rates for the Notes include the interest on the Notes and amortization of the discount and debt issuance costs.

As of March 31, 2018, the fair value of the Notes, based on Level 2 inputs, was $1,993.2 million. For a description of the fair value hierarchy and the Company's fair value methodologies, including the use of an independent third-party service, see Note 1 "Summary of Significant Accounting Policies" in the Company's Annual Report on Form 10-K for fiscal 2017.