Income taxes (Details) - USD ($) |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
Dec. 31, 2012 |
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| Income Tax Contingency [Line Items] | ||||
| Discrete tax benefits related to reinstatement of the U.S. R&D tax credit | $ 79,000,000 | |||
| Changes in valuation allowance balances | $ 9,000,000 | $ 24,000,000 | 2,000,000 | |
| Tax loss carryforward, U.S. and non-U.S. | 35,000,000 | |||
| Tax loss carryforward, U.S. and non-U.S., set to expire | 0 | |||
| Amount of undistributed foreign earnings | 8,350,000,000 | |||
| Cash payments for income taxes | 1,167,000,000 | 1,104,000,000 | 569,000,000 | |
| Amount of deferred tax assets possibly to be realized | 12,000,000 | 56,000,000 | ||
| Unrecognized Tax Benefits | 84,000,000 | 108,000,000 | 91,000,000 | $ 184,000,000 |
| Maximum | ||||
| Income Tax Contingency [Line Items] | ||||
| Deferred tax liability increase due to tax depreciation related position | 150,000,000 | |||
| Foreign Tax Authority | ||||
| Income Tax Contingency [Line Items] | ||||
| Benefits from tax holidays | $ 60,000,000 | $ 44,000,000 | $ 40,000,000 | |
| Tax holiday, review time period | 5 years | |||
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- Definition The amount of the deferred tax assets that possibly will be realized from recognition of uncertain tax position as of the balance sheet date. No definition available.
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- Definition The amount of the tax credit carryforward set to expire, before tax effects, available to reduce future taxable income under enacted tax laws. No definition available.
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- Definition The time period, after which a tax holiday is required to undergo governmental review. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income exempt from income tax because of a tax holiday. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase reasonably possible in the next twelve months for the unrecognized tax benefit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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