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Segment Reporting (Tables) | 12 Months Ended
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Dec. 31, 2020
Segment Reporting [Abstract] |
Reconciliation of Revenue from Segments to Consolidated [Table Text Block] | A reconciliation of the totals reported for the reportable segments to the applicable line items in our accompanying consolidated statements of operations is as follows (in millions, except percentages):
| Year Ended December 31,
Net sales | 2020 |  | 2019 |  | 2018
MedSurg | $ | 3,066 |  |  | $ | 3,307 |  |  | $ | 3,007 |
Rhythm and Neuro | 2,752 |  |  | 3,140 |  |  | 3,041 |
Cardiovascular | 3,876 |  |  | 4,208 |  |  | 3,777 |
Total net sales of reportable segments | 9,694 |  |  | 10,654 |  |  | 9,823 |
All other (Specialty Pharmaceuticals) | 219 |  |  | 81 |  |  | n/a
Consolidated net sales | $ | 9,913 |  |  | $ | 10,735 |  |  | $ | 9,823 |
Reconciliation of depreciation by reportable segment to total [Table Text Block] |
| Year Ended December 31,
Depreciation expense | 2020 |  | 2019 |  | 2018
MedSurg | $ | 80 |  |  | $ | 75 |  |  | $ | 72 |
Rhythm and Neuro | 96 |  |  | 92 |  |  | 91 |
Cardiovascular | 154 |  |  | 138 |  |  | 133 |
Total depreciation expense of reportable segments | 330 |  |  | 306 |  |  | 296 |
All other (Specialty Pharmaceuticals) | 3 |  |  | $ | 6 |  |  | n/a
Consolidated depreciation expense | $ | 333 |  |  | $ | 311 |  |  | $ | 296 |
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] |
| Year Ended December 31,
Income (loss) before income taxes | 2020 |  | 2019 |  | 2018
MedSurg | $ | 1,079 |  |  | $ | 1,204 |  |  | $ | 1,102 |
Rhythm and Neuro | 439 |  |  | 666 |  |  | 655 |
Cardiovascular | 661 |  |  | 1,137 |  |  | 1,117 |
Total operating income of reportable segments | 2,179 |  |  | 3,007 |  |  | 2,875 |
All other (Specialty Pharmaceuticals) | 143 |  |  | 56 |  |  | n/a
Unallocated amounts: |  |  |  |  |
Corporate expenses, including hedging activities | (405) |  |  | (264) |  |  | (372) |
Goodwill and other intangible asset impairment charges, acquisition/divestiture-related net charges (credits), restructuring and restructuring-related net charges (credits), certain litigation-related net charges (credits) and EU Medical Device Regulation (MDR) implementation costs | (1,208) |  |  | (582) |  |  | (398) |
Amortization expense | (789) |  |  | (699) |  |  | (599) |
Operating income (loss) | (80) |  |  | 1,518 |  |  | 1,506 |
Other expense, net | 1 |  |  | (831) |  |  | (85) |
Income (loss) before income taxes | $ | (79) |  |  | $ | 687 |  |  | $ | 1,422 |
Segment operating income as percentage of net sales [Table Text Block] |
Operating income of reportable segments as a percentage of net sales of reportable segments | Year Ended December 31,
2020 |  | 2019 |  | 2018
MedSurg | 35.2 | % |  | 36.4 | % |  | 36.7 | %
Rhythm and Neuro | 15.9 | % |  | 21.2 | % |  | 21.5 | %
Cardiovascular | 17.1 | % |  | 27.0 | % |  | 29.6 | %
Reconciliation of Assets from Segment to Consolidated [Table Text Block] |
| As of December 31,
Total assets | 2020 |  | 2019
MedSurg | $ | 1,638 |  |  | $ | 1,803 |
Rhythm and Neuro | 1,827 |  |  | 1,873 |
Cardiovascular | 2,461 |  |  | 2,535 |
Total assets of reportable segments | 5,926 |  |  | 6,211 |
All other (Specialty Pharmaceuticals) | 1,133 |  |  | 211 |
Goodwill | 9,951 |  |  | 10,176 |
Other intangible assets, net | 5,917 |  |  | 7,886 |
All other corporate assets | 7,850 |  |  | 6,082 |
| $ | 30,777 |  |  | $ | 30,565 |
Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block] |
| As of December 31,
Long-lived assets | 2020 |  | 2019 |  | 2018
U.S. | $ | 1,151 |  |  | $ | 1,148 |  |  | $ | 1,061 |
Ireland | 382 |  |  | 327 |  |  | 242 |
Other countries | 551 |  |  | 604 |  |  | 478 |
Property, plant and equipment, net | 2,084 |  |  | 2,079 |  |  | 1,782 |
Goodwill | 9,951 |  |  | 10,176 |  |  | 7,911 |
Other intangible assets, net | 5,917 |  |  | 7,886 |  |  | 6,372 |
Operating lease right-of-use assets in Other long-term assets | 458 |  |  | 336 |  |  | — |
| $ | 18,409 |  |  | $ | 20,477 |  |  | $ | 16,064 |

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