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Fair Value Measurements - Summary of Designated Derivatives (Details) - Cash Flow Hedging - Designated as Hedging Instrument - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2017 | Jan. 01, 2017
Summary of designated derivatives |  |
Gain/(Loss) Recognized In Accumulated OCI(1) | $ (4) | $ (359)
Gain/(Loss) Reclassified From Accumulated OCI Into Income(1) | (359) | (110)
Gain/(Loss) Recognized In Other Income/Expense(2) | (6) | (14)
Foreign exchange contracts | Sales to customers |  |
Summary of designated derivatives |  |
Gain/(Loss) Recognized In Accumulated OCI(1) | 49 | (65)
Gain/(Loss) Reclassified From Accumulated OCI Into Income(1) | (31) | (47)
Gain/(Loss) Recognized In Other Income/Expense(2) | (1) | (1)
Foreign exchange contracts | Cost of products sold |  |
Summary of designated derivatives |  |
Gain/(Loss) Recognized In Accumulated OCI(1) | 96 | (212)
Gain/(Loss) Reclassified From Accumulated OCI Into Income(1) | (159) | (3)
Gain/(Loss) Recognized In Other Income/Expense(2) | (10) | (15)
Foreign exchange contracts | Research and development expense |  |
Summary of designated derivatives |  |
Gain/(Loss) Recognized In Accumulated OCI(1) | (199) | (76)
Gain/(Loss) Reclassified From Accumulated OCI Into Income(1) | (165) | (90)
Gain/(Loss) Recognized In Other Income/Expense(2) | 5 | 0
Foreign exchange contracts | Other Income Expense Net |  |
Summary of designated derivatives |  |
Gain/(Loss) Recognized In Accumulated OCI(1) | (60) | (72)
Gain/(Loss) Reclassified From Accumulated OCI Into Income(1) | (87) | (7)
Gain/(Loss) Recognized In Other Income/Expense(2) | 0 | 2
Cross currency interest rate swaps | Interest (income)/Interest expense, net |  |
Summary of designated derivatives |  |
Gain/(Loss) Recognized In Accumulated OCI(1) | 110 | 66
Gain/(Loss) Reclassified From Accumulated OCI Into Income(1) | 83 | 37
Gain/(Loss) Recognized In Other Income/Expense(2) | $ 0 | $ 0

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- Definition Derivative instruments gain loss on statement of financial performance. + References No definition available. + Details
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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624177-113959 + Details
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- Definition The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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- Definition Amount of gain (loss) from the ineffectiveness of the hedge. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986 + Details
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