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Income Taxes - Additional Information (Detail) ₪ in Millions, $ in Millions |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jan. 01, 2017 | Oct. 31, 2021 USD ($) | Jul. 31, 2020 USD ($) | Dec. 31, 2021 USD ($) Employee | Dec. 31, 2021 ILS (₪) Employee | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2016
Income Tax [Line Items] |  |  |  |  |  |  |  |
Balance of accrued potential penalties and interest in unrecognized tax benefits |  |  |  | $ 210 |  | $ 173 | $ 164 |
Unrecognized Tax Benefits Income Tax Penalties And Interest Expense |  |  |  | $ 37 |  | $ 9 | $ 33 |
Statutory tax rate in Israel |  |  |  | 23.00% | 23.00% | 23.00% | 23.00% |
Annual revenue |  |  |  | $ 15,878 |  | $ 16,659 | $ 16,887 |
Expected impairment of income tax benefit |  |  | $ 141 |  |  |  |  |
Israel Tax Authority [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Income tax audit period |  |  |  | 2008 2009 2010 2011 | 2008 2009 2010 2011 |  |  |
Withholding tax percentage on dividends |  |  |  |  |  |  |  | 8.00%
Israel Tax Authority [Member] | Tax Year 2005 To 2007 [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Income tax settlement amount |  |  |  |  |  | $ 213 |  |
Israel Tax Authority [Member] | Tax Year 2008 To 2011 [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Income Tax Examination, Estimate of Possible Loss |  | $ 350 |  |  |  |  |  |
Tax Carryforwards And Deductions Expiration Period One [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Tax effect of unspecified carryforward losses and deductions |  |  |  | $ 20 |  |  |  |
Tax Carryforwards And Deductions Expiration Period Two [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Tax effect of unspecified carryforward losses and deductions |  |  |  | 828 |  |  |  |
Tax Carryforwards And Deductions No Expiration [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Tax effect of unspecified carryforward losses and deductions |  |  |  | 123 |  |  |  |
Tax Carryforwards And Deductions Indefinite [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Tax effect of unspecified carryforward losses and deductions |  |  |  | 1,133 |  |  |  |
Amendment 69 to Investment Law [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Payment of corporate tax |  |  |  | 577 |  |  |  |
Exempt Income |  |  |  | 9,400 |  |  |  |
Amendment 68 to Investment Law [Member] | Israel Tax Authority [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Statutory tax rate in Israel |  |  |  |  |  |  |  | 16.00%
Amendment 68 to Investment Law [Member] | Israel Tax Authority [Member] | Development Zonea [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Statutory tax rate in Israel |  |  |  |  |  |  |  | 9.00%
Amendment 73 to Investment Law [Member] | Israel Tax Authority [Member] | Development Zonea [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Statutory tax rate in Israel | 7.50% |  |  |  |  |  |  |
Preferred Enterprise [Member] | Israel Tax Authority [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Withholding tax percentage on dividends |  |  |  |  |  |  |  | 20.00%
Preferred Enterprise [Member] | Israel Tax Authority [Member] | Development Zonea [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Withholding tax percentage on dividends |  |  |  |  |  |  |  | 5.00%
Preferred Technological Enterprises [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Venture capital investment |  |  |  | $ 2 |  |  |  |
Average growth rate in sales or workforce |  |  |  | 25.00% | 25.00% |  |  |
Average growth preceding period in sales or workforce |  |  |  | 3 years | 3 years |  |  |
Preferred Technological Enterprises [Member] | Research and Development Arrangement [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Minimum percentage of investment income |  |  |  | 7.00% | 7.00% |  |  |
Minimum investment income |  |  |  | $ 22 | ₪ 75 |  |  |
Minimum percentage of workforce |  |  |  | 200.00% | 200.00% |  |  |
Minimum number of employees employed | Employee |  |  |  | 20 | 20 |  |  |
Preferred Technological Enterprises [Member] | Israel Tax Authority [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Statutory tax rate in Israel |  |  |  | 12.00% | 12.00% |  |  |
Preferred Technological Enterprises [Member] | Israel Tax Authority [Member] | Development Zonea [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Statutory tax rate in Israel |  |  |  | 7.50% | 7.50% |  |  |
Special Preferred Technological Enterprise [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Annual revenue |  |  |  | $ 2,900 | ₪ 10,000 |  |  |
Special Preferred Technological Enterprise [Member] | Israel Tax Authority [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Statutory tax rate in Israel |  |  |  | 6.00% | 6.00% |  |  |
Withholding tax percentage on dividends |  |  |  | 4.00% | 4.00% |  |  |
Minimum [Member] | Tax Carryforwards And Deductions Expiration Period One [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Expiration period |  |  |  | Dec. 31, 2022 | Dec. 31, 2022 |  |  |
Minimum [Member] | Tax Carryforwards And Deductions Expiration Period Two [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Expiration period |  |  |  | Dec. 31, 2024 | Dec. 31, 2024 |  |  |
Minimum [Member] | Tax Carryforwards And Deductions No Expiration [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Expiration period |  |  |  | Dec. 31, 2032 | Dec. 31, 2032 |  |  |
Maximum [Member] | Tax Carryforwards And Deductions Expiration Period One [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Expiration period |  |  |  | Dec. 31, 2023 | Dec. 31, 2023 |  |  |
Maximum [Member] | Tax Carryforwards And Deductions Expiration Period Two [Member] |  |  |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |  |  |
Expiration period |  |  |  | Dec. 31, 2031 | Dec. 31, 2031 |  |  |

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