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Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Components Of Deferred Tax Assets And Liabilities [Line Items]      
Allowances and operating liabilities $ 368 $ 331 $ 344
Net operating loss carry forwards 25 14 10
Post retirement benefits 54 14 17
Foreign tax credit carry forwards 259 106 220
Other 149 151 75
Deferred Tax Assets, Gross, Total 855 616 666
Valuation allowance for deferred tax assets (93) (13) (9)
Total deferred tax assets 762 603 657
Deferred tax liabilities:      
Tax over book depreciation 268 204 213
Intangible assets 1,448 1,398 1,307
Deferred income 314 226 456
Accrued U.S. tax on unremitted earnings 92 70 149
Other 208 168 211
Total deferred tax liabilities 2,330 2,066 2,336
Net deferred tax liability $ 1,568 $ 1,463 $ 1,679