Other (Income)/Deductions—Net - Schedule of Other Nonoperating Income (Expense) (Details) - USD ($) $ in Millions |
12 Months Ended | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Other Income and Expenses [Abstract] | |||||||||||||||||
| Interest income | $ (603) | $ (545) | $ (1,624) | ||||||||||||||
| Interest expense | [1] | 2,671 | 3,091 | 2,209 | |||||||||||||
| Net interest expense | 2,068 | 2,546 | 585 | ||||||||||||||
| Net (gains)/losses recognized during the period on equity securities | [2],[3] | 67 | (1,008) | (1,590) | |||||||||||||
| Income from collaborations, out-licensing arrangements and sales of compound/product rights | (192) | (42) | (154) | ||||||||||||||
| Net periodic benefit costs/(credits) other than service costs | (678) | 154 | (610) | ||||||||||||||
| Certain legal matters, net | [4] | 1,057 | 567 | 474 | |||||||||||||
| Certain asset impairments | [5] | 4,940 | 3,295 | 3,024 | |||||||||||||
| Haleon equity method (income)/loss | [6] | 0 | (102) | (505) | |||||||||||||
| Other, net | [7] | (538) | (1,022) | (1,002) | |||||||||||||
| Other (income)/deductions––net | $ 6,724 | $ 4,388 | $ 222 | ||||||||||||||
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