Segment, Geographic and Other Revenue Information - Schedule of Segment Reporting Information by Segment (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | 9 Months Ended | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 09, 2022 |
Oct. 02, 2022 |
Oct. 03, 2021 |
Jul. 03, 2022 |
Oct. 02, 2022 |
Oct. 03, 2021 |
|||||||||||||||||
Segment Reporting Information [Line Items] | ||||||||||||||||||||||
Revenues | [1] | $ 22,638 | $ 24,035 | $ 76,040 | $ 57,450 | |||||||||||||||||
Income from continuing operations before provision/(benefit) for taxes on income | [2] | 9,001 | 7,843 | 29,498 | 20,484 | |||||||||||||||||
Acquired in-process research and development expenses | [3] | 524 | 762 | 880 | 1,000 | |||||||||||||||||
Net gains/(losses) recognized during the period on equity securities | [4],[5] | (112) | 400 | (1,353) | 1,601 | |||||||||||||||||
Restructuring charges/(credits) and implementation costs and additional depreciation, asset restructuring | 823 | 701 | 1,100 | |||||||||||||||||||
Net periodic benefit, actuarial valuation and other pension and postretirement plan gains | 899 | 932 | ||||||||||||||||||||
Collaborative Arrangement [Member] | Arvinas Inc [Member] | ||||||||||||||||||||||
Segment Reporting Information [Line Items] | ||||||||||||||||||||||
Acquired in-process research and development expenses | 706 | 706 | ||||||||||||||||||||
ReViral [Member] | ||||||||||||||||||||||
Segment Reporting Information [Line Items] | ||||||||||||||||||||||
Acquired in-process research and development expenses | $ 426 | 426 | 426 | |||||||||||||||||||
Selling, informational and administrative expenses [Member] | ||||||||||||||||||||||
Segment Reporting Information [Line Items] | ||||||||||||||||||||||
Restructuring charges/(credits) and implementation costs and additional depreciation, asset restructuring | 150 | 344 | 310 | |||||||||||||||||||
ViiV [Member] | ||||||||||||||||||||||
Segment Reporting Information [Line Items] | ||||||||||||||||||||||
Dividend income | 112 | 38 | 237 | 127 | ||||||||||||||||||
Other Business Activities [Member] | ||||||||||||||||||||||
Segment Reporting Information [Line Items] | ||||||||||||||||||||||
Revenues | [6] | 319 | 521 | 974 | 1,348 | |||||||||||||||||
Income from continuing operations before provision/(benefit) for taxes on income | [2],[6] | (4,007) | (3,303) | (9,820) | (7,778) | |||||||||||||||||
Inventory write-off | 516 | |||||||||||||||||||||
Other Business Activities [Member] | Paxlovid [Member] | ||||||||||||||||||||||
Segment Reporting Information [Line Items] | ||||||||||||||||||||||
Cost, excess raw materials | 400 | 400 | ||||||||||||||||||||
Other Business Activities [Member] | Reclassification Adjustment [Member] | ||||||||||||||||||||||
Segment Reporting Information [Line Items] | ||||||||||||||||||||||
Operating costs | (57) | $ (105) | (153) | |||||||||||||||||||
Reconciling Items [Member] | Amortization of Intangible Assets [Member] | ||||||||||||||||||||||
Segment Reporting Information [Line Items] | ||||||||||||||||||||||
Revenues | 0 | 0 | 0 | 0 | ||||||||||||||||||
Income from continuing operations before provision/(benefit) for taxes on income | [2] | (822) | (980) | (2,478) | (2,778) | |||||||||||||||||
Reconciling Items [Member] | Acquisition-Related Items [Member] | ||||||||||||||||||||||
Segment Reporting Information [Line Items] | ||||||||||||||||||||||
Revenues | 0 | 0 | 0 | 0 | ||||||||||||||||||
Income from continuing operations before provision/(benefit) for taxes on income | [2] | (62) | (41) | (331) | (14) | |||||||||||||||||
Reconciling Items [Member] | Certain Significant Items [Member] | ||||||||||||||||||||||
Segment Reporting Information [Line Items] | ||||||||||||||||||||||
Revenues | [7] | 0 | 0 | 0 | 0 | |||||||||||||||||
Income from continuing operations before provision/(benefit) for taxes on income | [2],[7] | (773) | 318 | (3,095) | 1,102 | |||||||||||||||||
Net gains/(losses) recognized during the period on equity securities | (1,300) | 1,600 | ||||||||||||||||||||
Biopharma [Member] | ||||||||||||||||||||||
Segment Reporting Information [Line Items] | ||||||||||||||||||||||
Revenues | [1],[8] | 22,319 | 23,513 | 75,066 | 56,101 | |||||||||||||||||
Biopharma [Member] | Operating Segments [Member] | ||||||||||||||||||||||
Segment Reporting Information [Line Items] | ||||||||||||||||||||||
Revenues | 22,319 | 23,513 | 75,066 | 56,101 | ||||||||||||||||||
Income from continuing operations before provision/(benefit) for taxes on income | [2] | $ 14,665 | 11,848 | $ 45,222 | 29,952 | |||||||||||||||||
Biopharma [Member] | Operating Segments [Member] | Reclassification Adjustment [Member] | ||||||||||||||||||||||
Segment Reporting Information [Line Items] | ||||||||||||||||||||||
Operating costs | $ 57 | $ 105 | $ 153 | |||||||||||||||||||
|