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Income Taxes Income Taxes- Schedule of Deferred Tax Assets and Liabilities (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Tax Disclosure [Abstract]        
Deferred and stock-based compensation $ 168us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost $ 177us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost    
Pension 111us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions 80us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions    
Accrued expenses 70us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities 68us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities    
Tax credits 11ice_DeferredTaxAssetsIncomeTaxCredits 14ice_DeferredTaxAssetsIncomeTaxCredits    
NOL carryforward 156us-gaap_DeferredTaxAssetsOperatingLossCarryforwards 174us-gaap_DeferredTaxAssetsOperatingLossCarryforwards    
Impairment losses 32us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses 35us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses    
Other 28us-gaap_DeferredTaxAssetsOther 9us-gaap_DeferredTaxAssetsOther    
Total 576us-gaap_DeferredTaxAssetsGross 557us-gaap_DeferredTaxAssetsGross    
Valuation allowance (75)us-gaap_DeferredTaxAssetsValuationAllowance (95)us-gaap_DeferredTaxAssetsValuationAllowance (11)us-gaap_DeferredTaxAssetsValuationAllowance (16)us-gaap_DeferredTaxAssetsValuationAllowance
Total deferred tax assets, net of valuation allowance 501us-gaap_DeferredTaxAssetsNet 462us-gaap_DeferredTaxAssetsNet    
Property and equipment (32)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment (16)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment    
Acquired intangibles (2,424)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets (2,954)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets    
Partnership basis difference 0us-gaap_DeferredTaxLiabilitiesOther (43)us-gaap_DeferredTaxLiabilitiesOther    
Total deferred tax liabilities (2,514)us-gaap_DeferredTaxLiabilities (3,068)us-gaap_DeferredTaxLiabilities    
Net deferred tax liabilities (2,013)us-gaap_DeferredTaxAssetsLiabilitiesNet (2,606)us-gaap_DeferredTaxAssetsLiabilitiesNet    
Deferred Tax Liabilities, Net, Current (90)us-gaap_DeferredTaxLiabilitiesCurrent (14)us-gaap_DeferredTaxLiabilitiesCurrent    
Net non-current deferred tax assets 15us-gaap_DeferredTaxAssetsNetNoncurrent 2us-gaap_DeferredTaxAssetsNetNoncurrent    
Net non-current deferred tax liabilities $ (1,938)us-gaap_DeferredTaxLiabilitiesNoncurrent $ (2,594)us-gaap_DeferredTaxLiabilitiesNoncurrent