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Debt - Summary of Short- and Long-Term Debt (Detail) - MXN ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2023 | Dec. 31, 2022
Disclosure of detailed information about borrowings [line items] |  |
Total Debt | $ 507,043,629 | $ 510,589,480
Less: Short-term debt and current portion of long-term debt | 152,921,592 | 102,024,414
Long-term debt | 354,122,037 | 408,565,066
Lines of credit [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Total Debt | 12,653,000 | 71,560,000
Less: Short-term debt and current portion of long-term debt | 67,581,542 | 65,325,561
Line of credit and others [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Total Debt | 76,953,819 | 71,560,463
U.S. dollars [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Total Debt | $ 150,624,187 | $ 164,945,155
U.S. dollars [member] | Fixed-rate Senior notes interest rate 3.625% maturing 2029 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 3.625% | 3.625%
Borrowings maturity | 2029 | 2029
Total Debt | $ 17,728,700 | $ 19,414,300
U.S. dollars [member] | Fixed-rate Senior notes interest rate 2.875% maturing 2030 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 2.875% | 2.875%
Borrowings maturity | 2030 | 2030
Total Debt | $ 17,728,700 | $ 19,414,300
U.S. dollars [member] | Fixed rate senior notes interest rate 4.700% maturing 2032 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 4.70% | 4.70%
Borrowings maturity | 2032 | 2032
Total Debt | $ 13,296,525 | $ 14,560,725
U.S. dollars [member] | Fixed-rate Senior notes interest rate 6.375% maturing 2035 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 6.375% | 6.375%
Borrowings maturity | 2035 | 2035
Total Debt | $ 17,397,705 | $ 19,051,835
U.S. dollars [member] | Fixed-rate Senior notes interest rate 6.125% maturing 2037 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 6.125% | 6.125%
Borrowings maturity | 2037 | 2037
Total Debt | $ 6,545,879 | $ 7,168,245
U.S. dollars [member] | Fixed-rate Senior notes interest rate 6.125% maturing 2040 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 6.125% | 6.125%
Borrowings maturity | 2040 | 2040
Total Debt | $ 35,377,798 | $ 38,741,430
U.S. dollars [member] | Fixed Rate Senior Notes Interest Rate 4.375% Maturing 2042 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 4.375% | 4.375%
Borrowings maturity | 2042 | 2042
Total Debt | $ 20,388,005 | $ 22,326,445
U.S. dollars [member] | Fixed-rate Senior notes interest rate 4.375% maturing 2049 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 4.375% | 4.375%
Borrowings maturity | 2049 | 2049
Total Debt | $ 22,160,875 | $ 24,267,875
U.S. dollars [member] | Lines of credit [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate |  | 5.05%
Borrowings maturity |  | 2023
Total Debt |  | $ 491,750
Mexican pesos [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Total Debt | $ 83,377,777 | $ 53,554,397
Mexican pesos [member] | Domestic senior notes interest rate 0.020% maturing 2024 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 0.02% |
Interbank certificate of deposit interest rate basis | TIIE + 0.020% |
Borrowings maturity | 2024 |
Total Debt | $ 1,356,693 |
Mexican pesos [member] | Domestic senior notes interest rate 0.050% maturing 2024 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 0.05% | 0.05%
Interbank certificate of deposit interest rate basis | TIIE + 0.050% | TIIE + 0.050%
Borrowings maturity | 2024 | 2024
Total Debt | $ 1,920,231 | $ 1,920,231
Mexican pesos [member] | Fixed Rate Senior Notes Interest Rate 7.125% Maturing 2024 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 7.125% | 7.125%
Borrowings maturity | 2024 | 2024
Total Debt | $ 11,000,000 | $ 11,000,000
Mexican pesos [member] | Domestic Senior Notes Interest Rate 0.000% Maturing 2025 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 0.00% | 0.00%
Borrowings maturity | 2025 | 2025
Total Debt | $ 5,851,519 | $ 5,683,928
Mexican pesos [member] | Domestic Senior Notes Interest Rate 0.300% Maturing 2025 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 0.30% | 0.30%
Interbank certificate of deposit interest rate basis | TIIE + 0.300% | TIIE + 0.300%
Borrowings maturity | 2025 | 2025
Total Debt | $ 335,731 | $ 335,731
Mexican pesos [member] | Domestic Senior Notes Interest Rate 0.300% Maturing 2025 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 0.30% |
Interbank certificate of deposit interest rate basis | TIIE + 0.300% |
Borrowings maturity | 2025 |
Total Debt | $ 73,688 |
Mexican pesos [member] | Domestic senior notes interest rate 9.350% maturing 2028 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 9.35% |
Borrowings maturity | 2028 |
Total Debt | $ 11,016,086 |
Mexican pesos [member] | Domestic Senior Notes Interest Rate 9.500% Maturing 2031 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 9.50% | 9.52%
Borrowings maturity | 2031 | 2032
Total Debt | $ 17,000,000 | $ 14,679,166
Mexican pesos [member] | Fixed Rate Senior Notes Interest Rate 8.460% Maturing 2036 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 8.46% | 8.46%
Borrowings maturity | 2036 | 2036
Total Debt | $ 7,871,700 | $ 7,871,700
Mexican pesos [member] | Domestic Senior Notes Interest Rate 8.360% Maturing 2037 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 8.36% | 8.36%
Borrowings maturity | 2037 | 2037
Total Debt | $ 4,964,352 | $ 4,964,352
Mexican pesos [member] | Domestic Senior Notes Interest Rate 4.840% Maturing 2037 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 4.84% | 4.84%
Borrowings maturity | 2037 | 2037
Total Debt | $ 7,308,611 | $ 7,099,289
Mexican pesos [member] | Lines of credit [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings maturity |  | 2023
Total Debt | $ 56,280,000 | $ 43,580,000
Mexican pesos [member] | Domestic Senior Notes Interest Rate 9.520% Maturing 2032 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 9.52% |
Borrowings maturity | 2032 |
Total Debt | $ 14,679,166 |
Mexican pesos [member] | Bottom of range [member] | Lines of credit [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 0.30% | 0.28%
Borrowings maturity | 2023 |
Mexican pesos [member] | Top of range [member] | Lines of credit [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 0.78% | 0.58%
Borrowings maturity | 2024 |
Euros [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Total Debt | $ 114,882,469 | $ 129,358,533
Euros [member] | Commercial Paper Four Interest Rate 3.830%% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 3.83% |
Borrowings maturity | 2023 |
Total Debt | $ 937,228 |
Euros [member] | Commercial Paper Four Interest Rate 3.830%% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 3.83% |
Borrowings maturity | 2023 |
Total Debt | $ 749,782 |
Euros [member] | Commercial Paper Four Interest Rate 3.820% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 3.82% |
Borrowings maturity | 2023 |
Total Debt | $ 937,228 |
Euros [member] | Commercial Paper Four Interest Rate 3.830%% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 3.83% |
Borrowings maturity | 2023 |
Total Debt | $ 468,614 |
Euros [member] | Commercial Paper Four Interest Rate 3.830%% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 3.83% |
Borrowings maturity | 2023 |
Total Debt | $ 468,614 |
Euros [member] | Commercial Paper Four Interest Rate 3.850%% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 3.85% |
Borrowings maturity | 2023 |
Total Debt | $ 880,994 |
Euros [member] | Commercial Paper Four Interest Rate 3.840% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 3.84% |
Borrowings maturity | 2023 |
Total Debt | $ 468,614 |
Euros [member] | Commercial Paper Four Interest Rate 3.850% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 3.85% |
Borrowings maturity | 2023 |
Total Debt | $ 468,614 |
Euros [member] | Commercial Paper Four Interest Rate 3.870%% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 3.87% |
Borrowings maturity | 2023 |
Total Debt | $ 656,059 |
Euros [member] | Fixed rate senior notes interest rate 3.500% maturing 2023 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate |  | 3.50%
Borrowings maturity |  | 2023
Total Debt |  | $ 6,234,902
Euros [member] | Fixed rate senior notes interest rate 3.259% maturing 2023 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate |  | 3.259%
Borrowings maturity |  | 2023
Total Debt |  | $ 15,587,256
Euros [member] | Fixed rate senior notes interest rate 1.500% maturing 2024 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 1.50% | 1.50%
Borrowings maturity | 2024 | 2024
Total Debt | $ 15,932,871 | $ 17,665,557
Euros [member] | Fixed rate senior notes interest rate 1.500% maturing 2026 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 1.50% | 1.50%
Borrowings maturity | 2026 | 2026
Total Debt | $ 14,058,416 | $ 15,587,256
Euros [member] | Fixed rate senior notes interest rate 0.750% maturing 2027 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 0.75% | 0.75%
Borrowings maturity | 2027 | 2027
Total Debt | $ 14,167,790 | $ 15,708,525
Euros [member] | Fixed rate senior notes interest rate 2.125% maturing 2028 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 2.125% | 2.125%
Borrowings maturity | 2028 | 2028
Total Debt | $ 11,179,440 | $ 12,395,194
Euros [member] | Lines of credit [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest basis | Euribor 1M + 1.3% / 4.150% - 5.195% |
Total Debt | $ 12,652,574 | $ 17,052,458
Euros [member] | Lines of credit [member] | Euribor [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate adjustment | 1.30% |
Euros [member] | Exchangable Bonds Interest Rate 0.000% Maturing 2024 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 0.00% | 0.00%
Borrowings maturity | 2024 | 2024
Total Debt | $ 37,856,502 | $ 43,581,968
Euros [member] | Commercial Paper Four Interest Rate 2.010% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate |  | 2.01%
Borrowings maturity |  | 2023
Total Debt |  | $ 1,039,150
Euros [member] | Commercial Paper Four Interest Rate 2.270% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate |  | 2.27%
Borrowings maturity |  | 2023
Total Debt |  | $ 519,575
Euros [member] | Commercial Paper Four Interest Rate 2.150% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate |  | 2.15%
Borrowings maturity |  | 2023
Total Debt |  | $ 519,575
Euros [member] | Commercial Paper Four Interest Rate 3.870% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 3.87% |
Borrowings maturity | 2023 |
Total Debt | $ 937,228 |
Euros [member] | Commercial Paper Four Interest Rate 3.960% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 3.96% |
Borrowings maturity | 2023 |
Total Debt | $ 281,168 |
Euros [member] | Commercial Paper Four Interest Rate 3.950% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 3.95% |
Borrowings maturity | 2023 |
Total Debt | $ 937,228 |
Euros [member] | Commercial Paper Four Interest Rate 3.970% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 3.97% |
Borrowings maturity | 2023 |
Total Debt | $ 656,059 |
Euros [member] | Commercial Paper Four Interest Rate 4.030% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 4.03% |
Borrowings maturity | 2023 |
Total Debt | $ 937,228 |
Euros [member] | Commercial Paper Four Interest Rate 4.030% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 4.03% |
Borrowings maturity | 2023 |
Total Debt | $ 468,614 |
Euros [member] | Commercial Paper Four Interest Rate 4.140% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 4.14% |
Borrowings maturity | 2023 |
Total Debt | $ 187,446 |
Euros [member] | Commercial Paper Four Interest Rate 3.950% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 3.95% |
Borrowings maturity | 2023 |
Total Debt | $ 937,228 |
Euros [member] | Commercial Paper Four Interest Rate 3.950% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 3.95% |
Borrowings maturity | 2023 |
Total Debt | $ 656,059 |
Euros [member] | Commercial Paper Four Interest Rate 2.020% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate |  | 2.02%
Borrowings maturity |  | 2023
Total Debt |  | $ 519,575
Euros [member] | Commercial Paper Four Interest Rate 4.110% Maturing 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 4.11% |
Borrowings maturity | 2024 |
Total Debt | $ 281,168 |
Euros [member] | Fixed rate senior notes interest rate 5.250% maturing 2028 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 5.25% |
Borrowings maturity | 2028 |
Total Debt | $ 9,372,277 |
Euros [member] | Bottom of range [member] | Lines of credit [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 4.15% | 2.083%
Borrowings maturity | 2023 | 2023
Euros [member] | Top of range [member] | Lines of credit [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 5.195% | 2.65%
Borrowings maturity | 2028 | 2024
Pound sterling [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Total Debt | $ 47,579,931 | $ 51,608,257
Pound sterling [member] | Fixed rate senior notes interest rate 5.000% maturing 2026 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 5.00% | 5.00%
Borrowings maturity | 2026 | 2026
Total Debt | $ 10,813,621 | $ 11,729,149
Pound sterling [member] | Fixed rate senior notes interest rate 5.750% maturing 2030 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 5.75% | 5.75%
Borrowings maturity | 2030 | 2030
Total Debt | $ 14,057,707 | $ 15,247,894
Pound sterling [member] | Fixed rate senior notes interest rate 4.948% maturing 2033 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 4.948% | 4.948%
Borrowings maturity | 2033 | 2033
Total Debt | $ 6,488,172 | $ 7,037,490
Pound sterling [member] | Fixed rate senior notes interest rate 4.375% maturing 2041 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 4.375% | 4.375%
Borrowings maturity | 2041 | 2041
Total Debt | $ 16,220,431 | $ 17,593,724
Brazilian reais [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Total Debt | $ 28,499,887 | $ 33,673,729
Brazilian reais [member] | Lines of credit [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate |  | 13.32%
Borrowings maturity |  | 2023
Total Debt |  | $ 6,105,177
Brazilian reais [member] | Debenture CDI + 1.350% Maturing 2026 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 1.35% |
Interbank certificate of deposit interest rate basis | CDI + 1.350% |
Borrowings maturity | 2026 |
Total Debt | $ 5,310,538 |
Brazilian reais [member] | Promissory Note CDI + 1.000% maturing 2023 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 1.00% | 1.00%
Interbank certificate of deposit interest rate basis | CDI + 1.000% | CDI + 1.000%
Borrowings maturity | 2023 | 2023
Total Debt | $ 2,832,287 | $ 2,976,683
Brazilian reais [member] | Debenture CDI + 1.400% Maturing 2024 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 1.40% | 1.40%
Interbank certificate of deposit interest rate basis | CDI + 1.400% | CDI + 1.400%
Borrowings maturity | 2024 | 2024
Total Debt | $ 15,046,524 | $ 15,813,630
Brazilian reais [member] | Debenture CDI + 1.370% Maturing 2025 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 1.37% | 1.37%
Interbank certificate of deposit interest rate basis | CDI + 1.370% | CDI + 1.370%
Borrowings maturity | 2025 | 2025
Total Debt | $ 5,310,538 | $ 5,581,281
Brazilian reais [member] | Debenture CDI + 1.350% Maturing 2023 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate |  | 1.35%
Interbank certificate of deposit interest rate basis |  | CDI + 1.350%
Borrowings maturity |  | 2023
Total Debt |  | $ 9,302,135
Japanese yen [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Total Debt | $ 1,542,968 | $ 1,924,847
Japanese yen [member] | Fixed rate senior notes interest rate 2.950% maturing 2039 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 2.95% | 2.95%
Borrowings maturity | 2039 | 2039
Total Debt | $ 1,542,968 | $ 1,924,847
Chilean pesos [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Total Debt | $ 3,582,591 | $ 3,964,099
Chilean pesos [member] | Fixed rate senior notes interest rate 3.961% maturing 2035 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate |  | 4.00%
Borrowings maturity |  | 2035
Total Debt |  | $ 3,964,099
Chilean pesos [member] | Fixed rate senior notes interest rate 4.000% maturing 2035 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 4.00% |
Borrowings maturity | 2035 |
Total Debt | $ 3,582,591 |
Other currencies [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Total Debt | 5,125,559 | 5,888,946
Less: Short-term debt and current portion of long-term debt | 152,921,592 | 102,024,414
Long-term debt | $ 354,122,037 | $ 408,565,066
Other currencies [member] | Lines of credit [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate |  | 11.00%
Borrowings maturity |  | 2023
Total Debt |  | $ 23,543
Peruvian Soles [Member] | Lines of credit [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate |  | 6.00%
Borrowings maturity | 2024 | 2023
Total Debt | $ 8,021,245 | $ 4,142,056
Peruvian Soles [Member] | Bottom of range [member] | Lines of credit [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 7.94% |
Peruvian Soles [Member] | Top of range [member] | Lines of credit [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate | 8.01% |
Colombia, Pesos | Lines of credit [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings interest rate |  | 2.25%
Interbank certificate of deposit interest rate basis |  | IBR + 2.25
Borrowings maturity |  | 2023
Total Debt |  | $ 165,479

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