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Income Taxes - Summary of Major Components of Income Tax Expense (Detail) - MXN ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Current tax expense: |  |  |
Current year | $ 4,259 | $ 7,367 | $ 6,011
Deferred tax expense: |  |  |
Origination and reversal of temporary differences | 2,795 | (3,391) | 905
(Benefit) utilization of tax losses recognized | (445) | 1,452 | (1,268)
Total deferred tax expense (benefit) | 2,350 | (1,939) | (363)
Total income tax expense in consolidated net income | 6,609 | 5,428 | 5,648
Mexico |  |  |
Current tax expense: |  |  |
Current year | 3,356 | 6,311 | 5,123
Deferred tax expense: |  |  |
Origination and reversal of temporary differences | 1,659 | (2,676) | (438)
(Benefit) utilization of tax losses recognized | 356 | 1,962 | (1,136)
Total deferred tax expense (benefit) | 2,015 | (714) | (1,574)
Total income tax expense in consolidated net income | 5,371 | 5,597 | 3,549
Foreign |  |  |
Current tax expense: |  |  |
Current year | 903 | 1,056 | 888
Deferred tax expense: |  |  |
Origination and reversal of temporary differences | 1,136 | (715) | 1,343
(Benefit) utilization of tax losses recognized | (801) | (510) | (132)
Total deferred tax expense (benefit) | 335 | (1,225) | 1,211
Total income tax expense in consolidated net income | $ 1,238 | $ (169) | $ 2,099

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