Debt

3 Months Ended

Mar. 31, 2015

Debt

7. Debt

Debt is comprised of the following at March 31, 2015 and December 31, 2014:

(in millions)	March 31, 2015			December 31, 2014
Senior Secured Credit Facility Term Loans	$	2,013.1		$	2,024.6
6 1⁄8% Senior Notes due 2022 (a)		300.0			300.0
3 3⁄4% Senior Notes due 2021 (a)		321.5			357.9
7 1⁄2% Senior Subordinated Notes due 2017 (b)		654.3			650.6
1 7⁄8% Senior Subordinated Convertible Notes due 2018 (c)		449.1			445.8
1 1⁄2% Senior Subordinated Convertible Notes due 2019 (c)		227.9			226.0
1 1⁄8% Senior Subordinated Convertible Notes due 2034 (c)		488.5			484.1
Securitization Facility		436.7			479.3
Non-U.S. borrowings		66.7			83.2
Other		8.7			7.4
Total debt		4,966.5			5,058.9
Less: current portion		(536.9	)		(594.9	)
Total long-term debt	$	4,429.6		$	4,464.0

(a) Collectively, the “Senior Notes.”

(b) The “Senior Subordinated Notes.”

(c) Collectively, the “Senior Subordinated Convertible Notes.”

Other

At March 31, 2015 and December 31, 2014, the carrying value of total debt approximates fair market value. The fair market value (Level 1 measurement) of the Senior Notes and the Senior Subordinated Notes is based upon quoted market prices. The fair market value (Level 2 measurement) for all other debt instruments is estimated using interest rates currently available to the Company for debt with similar terms and maturities.