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Income Tax - Deferred Tax Assets and Liabilities (Detail) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]    
Tax loss carryforwards and investment credits $ 603 $ 740
Less unrecognized tax benefit (20) (235)
Tax loss carryforwards net of unrecognized tax benefit 583 505
Inventory valuation 28 35
Impairment and restructuring charges 14 16
Fixed asset depreciation in arrears 35 32
Increased depreciation incentives 211 118
Capitalized development costs 108 101
Receivables for government funding 11 6
Tax credits granted on past capital investments 1,155 1,160
Pension service costs 65 65
Stock awards 7 5
Commercial accruals 12 11
Other temporary differences 26 99
Total deferred tax assets 2,255 2,153
Valuation allowances (1,548) (1,502)
Deferred tax assets, net 707 651
Accelerated fixed asset depreciation (16) (13)
Acquired intangible assets (13) (10)
Advances of government funding (12) (9)
Other temporary differences (7) (6)
Deferred tax liabilities (48) (38)
Net deferred income tax asset $ 659 $ 613