Fair Value Disclosures (Tables)

6 Months Ended

Jun. 30, 2012

Financial Assets And Liabilities Measured At Fair Value

The following table presents information about our financial assets and liabilities measured at fair value on a recurring basis as of June 30, 2012 and December 31, 2011 under the fair value hierarchy discussed in Footnote 2, "Summary of Significant Accounting Policies and Recent Accounting Pronouncements."

Assets and Liabilities Measured at Fair Value on a Recurring Basis



	June 30, 2012								December 31, 2011
(in millions)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets
Deferred compensation plan investments (1)	$	37.3	$	—	$	—	$	37.3	$	41.0	$	—	$	—	$	41.0
Derivative financial instruments	—		—		—		—		—		0.1		—		0.1
Liabilities
Derivative financial instruments	$	—	$	5.9	$	—	$	5.9	$	—	$	16.6	$	—	$	16.6

(1) The balance at June 30, 2012 also reflects approximately $10.2 million of participant withdrawals from our deferred compensation plan investment during the six months ended June 30, 2012.

Fair Value Of Notes Receivable And Notes Payable

The following table presents the carrying and estimated fair value of our notes payable at June 30, 2012 and December 31, 2011:



	June 30, 2012				December 31, 2011
(in millions)	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value
Fixed rate notes payable	$	2,151.5	$	2,340.2	$	2,186.6	$	2,304.4
Floating rate notes payable	244.9		233.7		245.5		233.6