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Intangible Assets and Goodwill - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jul. 02, 2017 | Apr. 02, 2017 | Dec. 31, 2017 | Jan. 01, 2017 | Jan. 03, 2016 | Jun. 16, 2017
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Amortization expense of amortizable intangible assets |  |  | $ 3,000 | $ 1,200 | $ 1,200 |
Finite lived intangibles, amortization expense next twelve months |  |  | 4,400 |  |  |
Finite lived intangibles, amortization expense, year two |  |  | 4,400 |  |  |
Finite lived intangibles, amortization expense, year three |  |  | 4,400 |  |  |
Finite lived intangibles, amortization expense, year four |  |  | 4,400 |  |  |
Finite lived intangibles, amortization expense, year five |  |  | 4,400 |  |  |
Goodwill |  |  | $ 31,906 | 22,805 | 21,629 |
Patents And Trademarks |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Intangible assets useful life |  |  | 12 years |  |  |
Customer relationships and other intangible assets |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Intangible assets useful life |  |  | 23 years |  |  |
Actelion |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Goodwill |  |  | $ 6,161 |  |  | $ 5,986
Consumer |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Goodwill |  |  | 8,875 | 8,263 | 7,240 |
Medical Devices |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Goodwill |  |  | 13,922 | 11,702 | 11,500 |
Medical Devices | AMO |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Finite-lived Intangible Assets Acquired |  | $ 2,300 | 2,300 |  |  |
Goodwill |  | $ 1,700 | 1,700 |  |  |
Pharmaceutical |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Goodwill |  |  | $ 9,109 | $ 2,840 | $ 2,889 |
Pharmaceutical | Actelion |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Finite-lived Intangible Assets Acquired | $ 25,000 |  |  |  |  |
Goodwill | $ 6,200 |  |  |  |  |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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