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Goodwill and Other Intangibles (Changes in Net Carrying Amount of Goodwill by Segment) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Goodwill [Roll Forward] |  |
Goodwill, Beginning balance | $ 7,168 | $ 6,356
Additions and adjustments | 1,470 | 664
Foreign exchange | (75) | 148
Goodwill, Ending balance | 8,563 | 7,168
Orthopaedics |  |
Goodwill [Roll Forward] |  |
Goodwill, Beginning balance | 2,426 | 2,372
Additions and adjustments | 4 | 2
Foreign exchange | (31) | 52
Goodwill, Ending balance | 2,399 | 2,426
MedSurg |  |
Goodwill [Roll Forward] |  |
Goodwill, Beginning balance | 3,509 | 2,934
Additions and adjustments | 100 | 553
Foreign exchange | (28) | 22
Goodwill, Ending balance | 3,581 | 3,509
Neuro and Spine |  |
Goodwill [Roll Forward] |  |
Goodwill, Beginning balance | 1,233 | 1,050
Additions and adjustments | 1,366 | 109
Foreign exchange | (16) | 74
Goodwill, Ending balance | $ 2,583 | $ 1,233

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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- Definition Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e961-128460 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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