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Other Charges - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Restructuring Cost and Reserve [Line Items] |  |  |  |
Russia-Ukraine conflict and other charges |  | $ 40 | $ 1,029 | $ 273
Russia-Ukraine conflict and other charges, after tax |  | (81) | 896 | 279
Total Russia charges |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Russia-Ukraine conflict and other charges |  |  | 890 |
Total cost reduction program related charges |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Russia-Ukraine conflict and other charges |  | 26 | 65 | 338
Cost reduction program related charges |  |  |  | 338
Cost reduction program related charges, net of tax |  |  |  | 253
Resolution of U.S. Income Tax Audit |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Russia-Ukraine conflict and other charges, after tax |  | (124) |  |
Accrual for Potential Settlement of International Income Tax Matter |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Russia-Ukraine conflict and other charges, after tax |  | 85 |  |
Russia deconsolidation charges | Total Russia charges |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Russia-Ukraine conflict and other charges | $ 787 |  | 787 |
Russia-Ukraine conflict and other charges, after tax | $ 730 |  |  |
Loss recognized on deconsolidation |  | 407 |  |
Receivables write-off |  | 380 |  |
Other charges | Total Russia charges |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Russia-Ukraine conflict and other charges |  |  | 103 |
Russia-Ukraine conflict and other charges, after tax |  | 73 |  |
Other charges | Total cost reduction program related charges |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Russia-Ukraine conflict and other charges |  | 0 | 24 | 79
Merger-related costs and other charges |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Russia-Ukraine conflict and other charges |  |  | 139 |
Russia-Ukraine conflict and other charges, after tax |  |  | 93 |
Severance costs | Total cost reduction program related charges |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Russia-Ukraine conflict and other charges |  | 26 | 41 | 259
Merger related and other charges |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Russia-Ukraine conflict and other charges |  | $ 14 | $ 74 | (65)
Russia-Ukraine conflict and other charges, after tax |  |  |  | (26)
Gain from deconsolidation of joint venture |  |  |  | $ 52

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