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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]

Summary Of Components Of Provision For Income Taxes From Continuing Operations

The following table summarizes components of our provision for income taxes from continuing operations for each of the years in the three-year period ended December 31, 2015 (in millions):

	2015				2014				2013
Current income tax expense:
U.S.	$	18.7			$	114.8			$	94.4
Non-U.S.	125.4				149.2				98.6
	144.1				264.0				193.0
Deferred income tax (benefit) expense:
U.S.	(180.4		)		(86.7		)		19.2
Non-U.S.	22.4				(36.8		)		(9.1		)
	(158.0		)		(123.5		)		10.1
Total income tax (benefit) expense	$	(13.9	)		$	140.5			$	203.1

Summary Of Significant Components Of Deferred Income Tax Assets (Liabilities)

The following table summarizes significant components of deferred income tax assets (liabilities) as of December 31, 2015 and 2014 (in millions):

		2015				2014
Deferred tax assets:
Net operating loss carryforwards		$	228.7			$	204.5
Premium on long-term debt		86.0				99.2
Foreign tax credits		84.1				98.6
Deferred Revenue		77.7				103.0
Employee benefits, including share-based compensation		40.5				39.5
Other		20.5				16.7
Total deferred tax assets		537.5				561.5
Valuation allowance		(266.4		)		(271.3		)
Net deferred tax assets		271.1				290.2
Deferred tax liabilities:
Property and equipment		(97.1		)		(314.2		)
Intercompany transfers of property		(21.2		)		(23.0		)
Deferred costs		(15.3		)		(20.2		)
Other		(25.8		)		(14.1		)
Total deferred tax liabilities		(159.4		)		(371.5		)
Net deferred tax asset (liability)		$	111.7			$	(81.3	)

Summary Of Effective Income Tax Rate On Continuing Operations

Our consolidated effective income tax rate on continuing operations for each of the years in the three-year period ended December 31, 2015, differs from the U.K. statutory income tax rate as follows:

	2015			2014			2013
U.K. statutory income tax rate	20.2	%		21.5	%		23.3	%
Non-U.K. taxes	(12.3	)		(1.3	)		(13.2	)
Goodwill and asset impairments	(4.0	)		(25.3	)		—
Valuation allowance	(1.5	)		(1.1	)		1.0
Other	(1.5	)		.7			1.3
Effective income tax rate	.9	%		(5.5	)%		12.4	%

Summary Of Reconciliation Of The Beginning And Ending Amount Of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of unrecognized tax benefits for the years ended December 31, 2015 and 2014 is as follows (in millions):

		2015				2014
Balance, beginning of year		$	134.4			$	151.7
Increases in unrecognized tax benefits as a result       of tax positions taken during prior years		15.7				16.3
Increases in unrecognized tax benefits as a result       of tax positions taken during the current year		6.6				5.5
Decreases in unrecognized tax benefits as a result       of tax positions taken during prior years		(2.1		)		(15.5		)
Settlements with taxing authorities		(0.6		)		(14.2		)
Lapse of applicable statutes of limitations		(5.6		)		(.7		)
Impact of foreign currency exchange rates		(7.8		)		(8.7		)
Balance, end of year		$	140.6			$	134.4

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- References

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- Definition

Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319

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Tabular disclosure of tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities (i.e., uncertain tax positions) and other types of income tax contingencies, including: (1) the policy on classification of interest and penalties; (2) a tabular reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period; the total amount(s) of: (3) unrecognized tax benefits that, if recognized, would affect the effective tax rate, and (4) interest and penalties recognized in each of the income statement and balance sheet; (5) for positions for which it is reasonably possible that the total amounts unrecognized will significantly change within 12 months of the reporting date the: (i) nature of the uncertainty, (ii) nature of the event that could occur that would cause the change, and (iii) an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made; and (6) a description of tax years that remain subject to examination by major tax jurisdictions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

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