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Income Tax - Deferred Tax Assets and Liabilities (Detail) - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]    
Tax loss carryforwards and investment credits $ 827 $ 908
Less unrecognized tax benefit (180) (238)
Tax loss carryforward net of unrecognized tax benefit 647 670
Inventory valuation 22 15
Impairment and restructuring charges 15 16
Fixed asset depreciation in arrears 44 39
Capitalized development costs 80 63
Receivables for government funding 5 13
Tax credits granted on past capital investments 1,156 1,147
Pension service costs 73 82
Stock awards   5
Commercial accruals 21 15
Other temporary differences 86 78
Total deferred tax assets 2,149 2,143
Valuation allowances (1,585) (1,607)
Deferred tax assets, net 564 536
Accelerated fixed asset depreciation (16) (26)
Acquired intangible assets (11) (11)
Advances of government funding (16) (23)
Other temporary differences (8) (3)
Deferred tax liabilities (51) (63)
Net deferred income tax asset $ 513 $ 473