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Restructuring - Schedule of Charges Activities by Type of Cost (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | $ 390 |  | $ 1,274 |
Restructuring Program, 2025 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 302 |  | 951 |
Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 88 | $ 279 | 323 | $ 701
Accelerated Depreciation |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 56 |  | 152 |
Accelerated Depreciation | Restructuring Program, 2025 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 0 |  | 0 |
Accelerated Depreciation | Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 56 | 40 | 152 | 171
Separation Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 6 |  | 494 |
Separation Costs | Restructuring Program, 2025 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 0 |  | 481 |
Separation Costs | Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 6 | 11 | 13 | 122
Other Exit Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 328 |  | 628 |
Other Exit Costs | Restructuring Program, 2025 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 302 |  | 470 |
Other Exit Costs | Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 26 | 228 | 158 | 408
Cost of sales | Restructuring Program, 2025 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 72 |  | 172 |
Cost of sales | Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 38 | 192 | 139 | 374
Cost of sales | Accelerated Depreciation | Restructuring Program, 2025 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 0 |  | 0 |
Cost of sales | Accelerated Depreciation | Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 56 | 40 | 152 | 171
Cost of sales | Separation Costs | Restructuring Program, 2025 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 0 |  | 0 |
Cost of sales | Separation Costs | Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 0 | 0 | 0 | 0
Cost of sales | Other Exit Costs | Restructuring Program, 2025 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 72 |  | 172 |
Cost of sales | Other Exit Costs | Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | (18) | 152 | (13) | 203
Selling, general and administrative | Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 0 | 31 | 1 | 67
Selling, general and administrative | Accelerated Depreciation | Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 0 | 0 | 0 | 0
Selling, general and administrative | Separation Costs | Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 0 | 0 | 0 | 0
Selling, general and administrative | Other Exit Costs | Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 0 | 31 | 1 | 67
Research and development | Restructuring Program, 2025 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 233 |  | 286 |
Research and development | Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs |  | 0 |  | 2
Research and development | Accelerated Depreciation | Restructuring Program, 2025 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 0 |  | 0 |
Research and development | Accelerated Depreciation | Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs |  | 0 |  | 0
Research and development | Separation Costs | Restructuring Program, 2025 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 0 |  | 0 |
Research and development | Separation Costs | Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs |  | 0 |  | 0
Research and development | Other Exit Costs | Restructuring Program, 2025 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 233 |  | 286 |
Research and development | Other Exit Costs | Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs |  | 0 |  | 2
Restructuring costs | Restructuring Program, 2025 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | (3) |  | 493 |
Restructuring costs | Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 50 | 56 | 183 | 258
Restructuring costs | Accelerated Depreciation | Restructuring Program, 2025 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 0 |  | 0 |
Restructuring costs | Accelerated Depreciation | Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 0 | 0 | 0 | 0
Restructuring costs | Separation Costs | Restructuring Program, 2025 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 0 |  | 481 |
Restructuring costs | Separation Costs | Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 6 | 11 | 13 | 122
Restructuring costs | Other Exit Costs | Restructuring Program, 2025 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | (3) |  | 12 |
Restructuring costs | Other Exit Costs | Restructuring Program, 2024 |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | $ 44 | $ 45 | $ 170 | $ 136

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