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Debt

3 Months Ended

Mar. 31, 2012

Debt [Abstract]

7.

Debt

Our debt consisted of the following (in millions):


		March 31, 2012				December 31, 2011
Short-term debt
Senior Credit Facility		$	141.8			$	143.0
Other short-term debt			2.8				0.3

Total short-term debt		$	144.6			$	143.3

Long-term debt
Senior Notes due 2014		$	250.0			$	250.0
Senior Notes due 2019			500.0				500.0
Senior Notes due 2021			300.0				300.0
Senior Notes due 2039			500.0				500.0
Debt discount			(1.8	)			(1.8	)
Adjustment related to interest rate swaps			24.6				27.8

Total long-term debt		$	1,572.8			$	1,576.0

The estimated fair value of our Senior Notes as of March 31, 2012, based on quoted prices for the specific securities from transactions in over-the-counter markets (Level 2), was $1,674.1 million. The carrying value of the Senior Credit Facility approximates fair value, as the underlying instruments have variable interest rates at market value.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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