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Restructuring - Charges Activities by Type of Cost (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | $ 258 | $ 128 | $ 384 | $ 462
Separation Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 106 | 64 | 132 | 293
Accelerated Depreciation |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 47 | 19 | 76 | 38
Other |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 105 | 45 | 176 | 131
Cost of sales |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 67 | 38 | 113 | 65
Cost of sales | Separation Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 0 | 0 | 0 | 0
Cost of sales | Accelerated Depreciation |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 17 | 11 | 35 | 21
Cost of sales | Other |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 50 | 27 | 78 | 44
Selling, general and administrative |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 27 | 2 | 48 | 4
Selling, general and administrative | Separation Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 0 | 0 | 0 | 0
Selling, general and administrative | Accelerated Depreciation |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 8 | 2 | 12 | 4
Selling, general and administrative | Other |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 19 | 0 | 36 | 0
Research and development |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 22 | 6 | 29 | 13
Research and development | Separation Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 0 | 0 | 0 | 0
Research and development | Accelerated Depreciation |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 22 | 6 | 29 | 13
Research and development | Other |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 0 | 0 | 0 | 0
Restructuring costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 142 | 82 | 194 | 380
Restructuring costs | Separation Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 106 | 64 | 132 | 293
Restructuring costs | Accelerated Depreciation |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | 0 | 0 | 0 | 0
Restructuring costs | Other |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total pretax restructuring costs | $ 36 | $ 18 | $ 62 | $ 87

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