June 30, 2013	Fair Value Measurements Using Input Type
($ in millions)	Level 1		Level 2		Total
Assets:
Marketable securities
Municipal auction rate securities	$	—	$	5.4	$	5.4
Derivative financial instruments	—		0.9		0.9
Total assets	$	—	$	6.3	$	6.3

Liabilities:
Derivative financial instruments	$	—	$	73.1	$	73.1

June 30, 2012	Fair Value Measurements Using Input Type
($ in millions)	Level 1		Level 2		Total
Assets:
Marketable securities
Municipal auction rate securities	—		5.0		5.0
Derivative financial instruments	—		2.6		2.6
Total assets	$	—	$	7.6	$	7.6

Liabilities:
Derivative financial instruments	$	—	$	56.5	$	56.5

Tabular disclosure related to assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a recurring and/or nonrecurring basis in periods after initial recognition. Disclosures include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3) as well as transfers between levels 1 and 2.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Statement of Financial Accounting Standard (FAS)

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+ Details

- Definition

Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, assets, and liabilities. Such certain disclosures about the financial instruments, assets, and liabilities include: (1) the fair value of the required items together with their carrying amounts (as appropriate) and (2) the methodology and assumptions used in developing such estimates of fair value.

+ References

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+ Details