Income Taxes Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

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)	2013			2012
Depreciation	$	295.2		$	327.8
Deferred revenue	17.2			12.2
Intangibles	29.5			36.3
Gain on debt redemption	64.3			63.9
Other	54.7			54.7
Deferred tax liabilities	460.9			494.9
Claims and insurance	(169.2		)	(179.6		)
Net operating loss carryforwards	(329.1		)	(298.8		)
Employee benefit accruals	(237.9		)	(288.9		)
Other	(176.7		)	(173.6		)
Deferred tax assets	(912.9		)	(940.9		)
Valuation allowance	454.1			448.4
Net deferred tax assets	(458.8		)	(492.5		)
Net deferred tax liability	$	2.1		$	2.4

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:

	2013		2012		2011
Federal statutory rate	35.0	%	35.0	%	35.0	%
State income taxes, net	(2.4	)%	(1.8	)%	(1.1	)%
Foreign tax rate differential	(0.1	)%	2.6	%	—	%
Permanent differences	2.0	%	8.6	%	(6.3	)%
Valuation allowance	(31.9	)%	(39.8	)%	(35.4	)%
Benefit from intraperiod tax allocation under ASC 740	32.2	%	—	%	—	%
Net (increase) decrease in unrecognized tax benefits	0.6	%	(1.7	)%	3.7	%
Benefit from settlement of Tax Court litigation	—	%	6.4	%	—	%
Other, net	—	%	0.6	%	6.2	%
Effective tax rate	35.4	%	9.9	%	2.1	%

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

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

(in millions)	2013			2012			2011
Current:
Federal	$	(14.5	)	$	(24.0	)	$	(23.9	)
State	1.4			2.5			11.3
Foreign	9.6			2.7			5.3
Current income tax benefit	$	(3.5	)	$	(18.8	)	$	(7.3	)
Deferred:
Federal	$	(41.7	)	$	5.5		$	(0.2	)
State	—			0.5			—
Foreign	(0.7		)	(2.2		)	—
Deferred income tax provision (benefit)	$	(42.4	)	$	3.8		$	(0.2	)
Income tax benefit	$	(45.9	)	$	(15.0	)	$	(7.5	)
Based on the income (loss) before income taxes:
Domestic	$	(152.8	)	$	(173.8	)	$	(366.1	)
Foreign	23.3			22.3			4.2
Loss before income taxes	$	(129.5	)	$	(151.5	)	$	(361.9	)

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)		2013			2012
Unrecognized tax benefits at January 1		$	29.7		$	27.1
Increases related to:
	Tax positions taken during a prior period	1.3			3.6
	Tax positions taken during the current period	0.9			0.9
Decreases related to:
	Lapse of applicable statute of limitations	(1.2		)	(1.9		)
	Settlements with taxing authorities	(3.1		)	—
Unrecognized tax benefits at December 31		$	27.6		$	29.7

Summary of Income Tax Examinations [Table Text Block]

Tax years that remain subject to examination for our major tax jurisdictions as of December 31, 2013:

Statute remains open	2005-2012
Tax years currently under examination/exam completed	2005-2012
Tax years not examined	2013