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Acquisitions (Narrative) (Details) $ / shares in Units, $ in Millions |  |  | 12 Months Ended
--- | --- | --- | ---
Apr. 30, 2020 USD ($) $ / shares | Mar. 31, 2020 USD ($) | Dec. 31, 2021 USD ($) Business_Segments Businesses | Dec. 31, 2020 USD ($) Business | Dec. 31, 2019 USD ($) Business Business_Segments
Business Acquisition [Line Items] |  |  |  |  |
Net cash consideration |  |  | $ 10,961 | $ 20,971 | $ 331
Goodwill |  |  | $ 7,235 | $ 10,402 | $ 217
Number of businesses acquired | Business |  |  |  | 5 |
Number of segments | Business_Segments |  |  | 3 |  | 3
Pension liabilities assumed |  |  | $ 0 | $ 423 | $ 0
Proceeds from sale of product lines | $ 826 |  | 26 | 826 | 0
Gains on sale of product lines | 455 |  | 13 | 455 | 0
Gain on sale of product lines, net of tax | $ 305 |  | 10 |  |
Gain on sale of product lines, net of tax, per diluted common share | $ / shares | $ 0.42 |  |  |  |
Certain product lines, revenues |  |  |  | 88 | 170
Aldevron |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Net cash consideration |  |  | 9,561 |  |
Revenue reported by acquired entity for last annual period |  |  | 300 |  |
Goodwill |  |  | 6,149 |  |
Transaction costs |  |  | 28 |  |
Other businesses acquired |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Net cash consideration |  |  | 1,400 | 256 | 331
Revenue reported by acquired entity for last annual period |  |  | 100 |  | 72
Goodwill |  |  | $ 1,086 | $ 231 | $ 217
Number of businesses acquired |  |  | 13 | 4 | 5
Pension liabilities assumed |  |  |  | $ 0 |
Cytiva |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Net cash consideration |  |  |  | 20,715 |
Goodwill |  |  |  | 10,171 |
Consideration transferred |  | $ 20,700 |  |  |
Acquired cash |  | 100 |  |  |
Pension liabilities assumed |  | $ 400 |  | 423 |
Proceeds from underwritten public offerings of common stock and mandatory convertible preferred stock series A |  |  |  |  | $ 3,000
Proceeds from issuance of debt |  |  |  |  | 10,800
Proceeds from commercial paper borrowings, borrowings under the Five Year Facility and cash on hand |  |  |  |  | 6,900
Transaction costs |  |  |  | 59 | $ 93
Cytiva & Series of Individually Immaterial Business Acquisitions |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Revenue reported by acquired entity for last annual period |  |  |  | 3,300 |
Fair value adjustment to inventory | Aldevron |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Net income (loss), including portion attributable to noncontrolling interest |  |  | $ 30 |  |
Fair value adjustment to inventory | Cytiva |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Net income (loss), including portion attributable to noncontrolling interest |  |  | $ 46 | $ 509 |

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