Income Taxes Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Income Tax Disclosure [Abstract]

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

Deferred tax liabilities (assets) were comprised of the following at December 31:

(in millions)	2012			2011
Depreciation	$	327.8		$	375.2
Deferred revenue	12.2			12.4
Intangibles	36.3			45.5
Gain on debt redemption	63.9			64.5
Other	54.8			46.6
Deferred tax liabilities	495.0			544.2
Claims and insurance	(179.6		)	(204.6		)
Net operating loss carryforwards	(298.8		)	(230.5		)
Employee benefit accruals	(288.9		)	(238.2		)
Other	(173.6		)	(207.4		)
Deferred tax assets	(940.9		)	(880.7		)
Valuation allowance	448.4			336.6
Net deferred tax assets	(492.5		)	(544.1		)
Net deferred tax liability	$	2.5		$	0.1

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

A reconciliation between income taxes at the federal statutory rate and the consolidated effective tax rate follows:

	2012		2011		2010
Federal statutory rate	35.0	%	35.0	%	35.0	%
State income taxes, net	(1.8	)%	(1.1	)%	3.8	%
Foreign tax rate differential	2.6	%	—	%	—	%
Permanent differences	8.6	%	(6.3	)%	—	%
Valuation allowance	(39.8	)%	(35.4	)%	(15.1	)%
Net (increase) decrease in unrecognized tax benefits	(1.7	)%	3.7	%	—	%
Benefit from settlement of Tax Court litigation	6.4	%	—	%	—	%
Other, net	0.6	%	6.2	%	0.3	%
Effective tax rate	9.9	%	2.1	%	24.0	%

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

The income tax provision (benefit) consisted of the following:

(in millions)	2012			2011			2010
Current:
Federal	$	(24.0	)	$	(23.9	)	$	3.1
State	2.5			11.3			(21.1		)
Foreign	2.7			5.3			1.6
Current income tax benefit	$	(18.8	)	$	(7.3	)	$	(16.4	)
Deferred:
Federal	$	5.5		$	(0.2	)	$	(76.4	)
State	0.5			—			(4.9		)
Foreign	(2.2		)	—			1.5
Deferred income tax provision (benefit)	$	3.8		$	(0.2	)	$	(79.8	)
Income tax benefit from continuing operations	$	(15.0	)	$	(7.5	)	$	(96.2	)
Based on the income (loss) before income taxes:
Domestic	$	(173.8	)	$	(366.1	)	$	(386.4	)
Foreign	22.3			4.2			(14.5		)
Loss before income taxes from continuing operations	$	(151.5	)	$	(361.9	)	$	(400.9	)

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

A rollforward of the total amount of unrecognized tax benefits for the years ended December 31 is as follows:

(in millions)		2012			2011
Unrecognized tax benefits at January 1		$	27.1		$	45.1
Increases related to:
	Tax positions taken during a prior period	3.6			1.2
	Tax positions taken during the current period	0.9			—
Decreases related to:
	Tax positions taken during a prior period	—			(15.7		)
	Lapse of applicable statute of limitations	(1.9		)	—
	Settlements with taxing authorities	—			(3.5		)
Unrecognized tax benefits at December 31		$	29.7		$	27.1

Summary of Income Tax Examinations [Table Text Block]

Tax years that remain subject to examination for our major tax jurisdictions as of December 31, 2012:

Statute remains open	2005-2011
Tax years currently under examination/exam completed	2005-2011
Tax years not examined	2012