Tax Matters - Deferred Taxes (Details) - USD ($) $ in Millions |
Dec. 31, 2020 |
Dec. 31, 2019 |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deferred Tax Assets | ||||||||||||||
| Prepaid/deferred items - Deferred tax assets | [1],[2] | $ 3,094 | $ 1,918 | |||||||||||
| Inventories - Deferred tax assets | [1] | 276 | 267 | |||||||||||
| Intangible assets - Deferred tax assets | [1],[3] | 793 | 718 | |||||||||||
| Property, plant and equipment - Deferred tax assets | [1] | 211 | 177 | |||||||||||
| Employee benefits - Deferred tax assets | [1] | 1,981 | 2,115 | |||||||||||
| Restructurings and other charges - Deferred tax assets | [1] | 291 | 212 | |||||||||||
| Legal and product liability reserves - Deferred tax assets | [1] | 382 | 469 | |||||||||||
| Net operating loss/credit carryforwards - Deferred tax assets | [1],[4] | 1,761 | 2,003 | |||||||||||
| State and local tax adjustments - Deferred tax assets | [1] | 171 | 152 | |||||||||||
| Investments - Deferred tax assets | [1],[5] | 128 | 11 | |||||||||||
| All other - Deferred tax assets | [1] | 102 | 167 | |||||||||||
| Subtotal - Deferred tax assets | [1] | 9,189 | 8,208 | |||||||||||
| Valuation allowance | [1] | (1,586) | (1,526) | |||||||||||
| Total deferred taxes - Deferred tax assets | [1] | 7,603 | 6,682 | |||||||||||
| Deferred Tax Liabilities | ||||||||||||||
| Prepaid/deferred items - Deferred tax liabilities | [1],[2] | (352) | (204) | |||||||||||
| Inventories - Deferred tax liabilities | [1] | (25) | (10) | |||||||||||
| Intangible assets - Deferred tax liabilities | [1],[3] | (5,355) | (6,784) | |||||||||||
| Property, plant and equipment - Deferred tax liabilities | [1] | (1,219) | (1,204) | |||||||||||
| Employee benefits - Deferred tax liabilities | [1] | (127) | (37) | |||||||||||
| Unremitted earnings - Deferred tax liabilities | [1] | (46) | (77) | |||||||||||
| Investments - Deferred tax liabilities | [1],[5] | (3,545) | (3,318) | |||||||||||
| All other - Deferred tax liabilities | [1] | (57) | (9) | |||||||||||
| Deferred tax liabilities, gross | [1] | (10,726) | (11,643) | |||||||||||
| Net deferred tax liability | [1],[6] | $ (3,123) | $ (4,961) | |||||||||||
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