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Taxes on Income - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income Tax Contingency [Line Items] |  |  |  |
Transition tax for accumulated foreign earnings, liability | $ 1,500 |  |  |
Deferred tax assets on NOL carryforwards relating to foreign jurisdictions | 292 |  |  |
Deferred tax assets relating to various U.S. tax credit carryforwards and NOL carryforwards | 575 |  |  |
Income taxes paid | 4,338 | $ 3,239 | $ 2,412 |
Tax benefits relating to stock option exercises | 12 | 45 | 21 |
Unrecognized tax benefits | 2,384 | 1,835 | 1,529 | $ 1,537
Favorable net impact to income tax provision if unrecognized tax benefits were recognized | 2,300 |  |  |
Reasonably possible amount that liability for unrecognized tax benefits could decline up to in next 12 months (up to) | 25 |  |  |
Interest and penalties associated with uncertain tax positions, expense (benefit) | 131 | 54 | (37) |
Liabilities for accrued interest and penalties | 388 | 256 |  |
Unrecognized tax benefits from adjustments related to examination | 23 | 6 | 46 |
Income Taxes Payable |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Transition tax liability, current | 976 |  |  |
Other Noncurrent Liabilities |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Transition tax liability, noncurrent | 518 |  |  |
Foreign Jurisdiction |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Valuation allowance on foreign NOL carryforwards | 266 |  |  |
Income taxes paid | 2,080 | 1,348 | 1,201 |
Federal |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Valuation allowance on foreign NOL carryforwards | 379 |  |  |
Income taxes paid | $ 2,258 | $ 1,891 | 1,211 |
Federal | Internal Revenue Service (IRS) |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Income taxes paid |  |  | 190 |
Unrecognized tax benefits from adjustments related to examination |  |  | 236 |
Federal | Internal Revenue Service (IRS) | Continuing Operations |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Income taxes paid |  |  | 172 |
Unrecognized tax benefits from adjustments related to examination |  |  | 207 |
Federal | Internal Revenue Service (IRS) | Discontinued Operations |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Income taxes paid |  |  | 18 |
Unrecognized tax benefits from adjustments related to examination |  |  | $ 29 |

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- Definition Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-15 + Details
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