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Segment, Geographic and Other Revenue Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 28, 2020 | Jun. 30, 2019 | Jun. 28, 2020 | Jun. 30, 2019
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | [1] | $ 11,801 | $ 13,264 | $ 23,829 | $ 26,382
Earnings | [1],[2] | 3,953 | 4,141 | 7,838 | 8,463
Operating Segments [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues |  | 11,801 | 12,402 | 23,829 | 24,661
Earnings | [2] | 7,818 | 8,044 | 15,738 | 16,206
Segment Reconciling Items [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues |  | 0 | 862 | 0 | 1,721
Earnings | [2] | (1,530) | (1,193) | (3,019) | (2,306)
Segment Reconciling Items [Member] | Purchase Accounting Adjustments [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues |  | 0 | 0 | 0 | 0
Earnings | [2] | (910) | (1,178) | (1,722) | (2,217)
Segment Reconciling Items [Member] | Acquisition-Related Costs [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues |  | 0 | 0 | 0 | 0
Earnings | [2] | (21) | 176 | (34) | 148
Segment Reconciling Items [Member] | Certain Significant Items [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | [3] | 0 | 0 | 0 | 0
Earnings | [2],[3] | (268) | (309) | (879) | (691)
Corporate and other unallocated [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues |  | 0 | 0 | 0 | 0
Earnings | [2] | (1,136) | (1,399) | (2,245) | (2,676)
Biopharma [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues |  | 9,795 | 9,432 | 19,802 | 18,477
Biopharma [Member] | Operating Segments [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues |  | 9,795 | 9,432 | 19,802 | 18,477
Earnings | [2] | 6,650 | 6,071 | 13,379 | 11,954
Upjohn [Member] | Operating Segments [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues |  | 2,006 | 2,970 | 4,027 | 6,184
Earnings | [2] | $ 1,168 | $ 1,973 | $ 2,359 | $ 4,251
[1] | Amounts may not add due to rounding.
[2] | Income from continuing operations before provision/(benefit) for taxes on income. Biopharma’s earnings include d ividend income of $76 million in the second quarter of 2020 and $76 million in the second quarter of 2019, and $153 million in the first six months of 2020 and $140 million in the first six months of 2019 from our investment in ViiV. For additional information, see Note 4.
[3] | Certain significant items are substantive and/or unusual, and in some cases recurring, items (as noted above) that, either as a result of their nature or size, would not be expected to occur as part of our normal business on a regular basis.

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