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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Income Tax Disclosure [Abstract] |  |  |
Undistributed earnings of certain foreign subsidiaries | $ 3,900 |  |
Income taxes paid, net | 647 | $ 527 |
Income tax loss carryforwards | 1,920 |  |
Tax credit carryforwards | 24 |  |
Total losses | $ 1,250 |  |
Expiry date of losses | Between 2016 and 2035 |  |
Gross unrecognized tax benefits | $ 221 | 202 | $ 238
Recognized tax benefits | 158 | 177 |
Interest and penalties on the unrecognized tax benefits | 21 | 24 |
Recoveries/(expenses) related to changes in reserves for interest and penalties | 3 | $ 18 |
Decrease in gross unrecognized tax benefits | 50 |  |
Decrease in recognized tax benefits | $ 49 |  |

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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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 + Details
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