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Income Taxes - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Income Tax Disclosure [Line Items] |  |  |  |
Changes in valuation allowance balances | $ 58 | $ 9 |  |
Net income impacted due to change in valuation allowances | 63 | 0 |  |
Tax loss carryforward, U.S. and non-U.S. | 12 |  |  |
Tax loss carryforward, U.S. and non-U.S., set to expire | 0 |  |  |
Amount of undistributed foreign earnings | 9,030 |  |  |
Cash payments for income taxes | 1,150 | 1,170 | $ 1,100 |
Unrecognized Tax Benefits | 243 | 84 | 108 | $ 91
Amount of deferred tax assets possibly to be realized | 12 | 12 |  |
Foreign Tax Authority |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Benefits from tax holidays | $ 30 | $ 50 | $ 44 |
Tax holiday, review time period | 5 years |  |  |

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68052875&loc=d3e28680-109314 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32621-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32632-109319 + Details
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