Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Valuation Allowance [Line Items]

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

Our income tax (provision) benefit from continuing operations consisted of the following:

	Year Ended December 31,
(Dollars in millions)	2017			2016			2015
Total Current Provision	$	(162	)	$	(115	)	$	(303	)
Total Deferred (Provision) Benefit	25			(381		)	448
(Provision) Benefit for Income Taxes	$	(137	)	$	(496	)	$	145

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

The difference between the income tax (provision) benefit at the Swiss federal income tax rate and the income tax (provision) benefit attributable to “Loss Before Income Taxes” for each of the three years ended December 31, 2017, 2016 and 2015 is analyzed below:

	Year Ended December 31,
(Dollars in millions)	2017			2016			2015
Swiss Federal Income Tax Rate at 7.83%	$	208		$	225		$	164
Tax on Operating Earnings Subject to Rates Different than the Swiss Federal Income Tax Rate	123			319			411
U.S. Tax Reform - Remeasure of U.S. Deferred Tax Assets	(249		)	—			—
Non-cash Tax Expense on Distribution of Subsidiary Earnings	—			(137		)	(265		)
Change in Valuation Allowance Attributed to U.S. Tax Reform	301			—			—
Change in Valuation Allowance	(459		)	(872		)	(159		)
Change in Uncertain Tax Positions	(61		)	(31		)	(6		)
(Provision) Benefit for Income Taxes	$	(137	)	$	(496	)	$	145

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

The components of the net deferred tax asset (liability) attributable to continuing operations were as follows: 

	December 31,
(Dollars in millions)	2017			2016
Net Operating Losses Carryforwards	$	1,208		$	1,258
Accrued Liabilities and Reserves	266			200
Tax Credit Carryforwards	99			102
Employee Benefits	39			34
Inventory	129			75
Other Differences between Financial and Tax Basis	346			252
Valuation Allowance	(1,887		)	(1,738		)
Total Deferred Tax Assets	200			183
Deferred Tax Liabilities:
Property, Plant and Equipment	(49		)	(13		)
Intangible Assets	(131		)	(212		)
Deferred Income	—			(9		)
Undistributed Subsidiary Earnings	—			—
Other Differences between Financial and Tax Basis	(71		)	(25		)
Total Deferred Tax Liabilities	(251		)	(259		)
Net Deferred Tax Asset (Liability)	$	(51	)	$	(76	)

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

A tabular reconciliation of the total amounts of uncertain tax positions at the beginning and end of the period is as follows:

	Year Ended December 31,
(Dollars in millions)	2017			2016			2015
Balance at Beginning of Year	$	208		$	195		$	235
Additions as a Result of Tax Positions Taken During a Prior Period	65			30			28
Reductions as a Result of Tax Positions Taken During a Prior Period	(1		)	(1		)	(9		)
Additions as a Result of Tax Positions Taken During the Current Period	12			20			5
Reductions Relating to Settlements with Taxing Authorities	(29		)	(19		)	(46		)
Reductions as a Result of a Lapse of the Applicable Statute of Limitations	(38		)	(12		)	(7		)
Foreign Exchange Effects	—			(5		)	(11		)
Balance at End of Year	$	217		$	208		$	195

Summary of Income Tax Contingencies [Table Text Block]

We are subject to income tax in many of the approximately 90 countries where we operate. As of December 31, 2017, the following table summarizes the tax years that remain subject to examination for the major jurisdictions in which we operate: 

Canada	2009 - 2017
Mexico	2007 - 2017
Russia	2015 - 2017
Switzerland	2010 - 2017
United States	2014 - 2017