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Net Revenue (Tables) | 12 Months Ended
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Dec. 31, 2021
Text Block [Abstract] |
Summary of Disaggregation of Revenue from Contracts with Customers |
| a. | Disaggregation of revenue from contracts with customers
|  | Years Ended December 31 |
|  | 2019 |  |  | 2020 |  |  | 2021 |
|  | NT$ |  |  | NT$ |  |  | NT$ |
Product |  | (In Millions) |  |  | (In Millions) |  |  | (In Millions) |
Wafer |  | $ | 927,317.3 |  |  | $ | 1,178,456.3 |  |  | $ | 1,405,300.3 |
Others |  |  | 142,668.1 |  |  |  | 160,798.5 |  |  |  | 182,114.7 |
|  | $ | 1,069,985.4 |  |  | $ | 1,339,254.8 |  |  | $ | 1,587,415.0 |
|  | Years Ended December 31 |
|  | 2019 |  |  | 2020 |  |  | 2021 |
|  | NT$ |  |  | NT$ |  |  | NT$ |
Geography |  | (In Millions) |  |  | (In Millions) |  |  | (In Millions) |
Taiwan |  | $ | 84,255.2 |  |  | $ | 129,082.9 |  |  | $ | 203,963.7 |
United States |  |  | 634,713.0 |  |  |  | 817,911.0 |  |  |  | 1,015,996.4 |
China |  |  | 208,101.4 |  |  |  | 233,783.3 |  |  |  | 164,552.1 |
Europe, the Middle East and Africa |  |  | 67,568.2 |  |  |  | 70,213.4 |  |  |  | 89,010.1 |
Japan |  |  | 57,468.6 |  |  |  | 63,299.2 |  |  |  | 71,920.8 |
Others |  |  | 17,879.0 |  |  |  | 24,965.0 |  |  |  | 41,971.9 |
|  | $ | 1,069,985.4 |  |  | $ | 1,339,254.8 |  |  | $ | 1,587,415.0 |
The Company categorized the net revenue mainly based on the countries where the customers are headquartered.
|  | Years Ended December 31 |
|  | 2019 |  |  | 2020 |  |  | 2021 |
|  | NT$ |  |  | NT$ |  |  | NT$ |
Platform |  | (In Millions) |  |  | (In Millions) |  |  | (In Millions) |
Smartphone |  | $ | 523,612.9 |  |  | $ | 645,303.6 |  |  | $ | 695,091.2 |
High Performance Computing |  |  | 315,822.3 |  |  |  | 439,810.0 |  |  |  | 587,780.1 |
Internet of Things |  |  | 86,342.7 |  |  |  | 110,355.2 |  |  |  | 133,006.0 |
Automotive |  |  | 47,914.5 |  |  |  | 44,367.5 |  |  |  | 67,076.4 |
Digital Consumer Electronics |  |  | 53,733.4 |  |  |  | 54,555.7 |  |  |  | 55,577.2 |
Others |  |  | 42,559.6 |  |  |  | 44,862.8 |  |  |  | 48,884.1 |
|  | $ | 1,069,985.4 |  |  | $ | 1,339,254.8 |  |  | $ | 1,587,415.0 |
|  | Years Ended December 31 |
|  | 2019 |  |  | 2020 |  |  | 2021 |
|  | NT$ |  |  | NT$ |  |  | NT$ |
Resolution |  | (In Millions) |  |  | (In Millions) |  |  | (In Millions) |
5-nanometer |  | $ | — |  |  | $ | 90,934.5 |  |  | $ | 262,327.4 |
7-nanometer |  |  | 249,548.1 |  |  |  | 394,837.0 |  |  |  | 440,383.1 |
10-nanometer |  |  | 23,266.4 |  |  |  | 3,403.1 |  |  |  | 660.0 |
16-nanometer |  |  | 186,700.9 |  |  |  | 197,959.0 |  |  |  | 191,058.9 |
20-nanometer |  |  | 9,535.8 |  |  |  | 8,450.9 |  |  |  | 5,668.8 |
28-nanometer |  |  | 149,578.7 |  |  |  | 149,367.7 |  |  |  | 153,066.6 |
40/45-nanometer |  |  | 93,366.3 |  |  |  | 103,176.5 |  |  |  | 103,413.6 |
65-nanometer |  |  | 69,250.0 |  |  |  | 61,226.7 |  |  |  | 66,467.9 |
90-nanometer |  |  | 25,624.2 |  |  |  | 29,380.4 |  |  |  | 32,260.3 |
0.11/0.13 micron |  |  | 22,947.3 |  |  |  | 33,197.1 |  |  |  | 40,558.5 |
0.15/0.18 micron |  |  | 77,564.5 |  |  |  | 86,008.5 |  |  |  | 86,700.3 |
0.25 micron and above |  |  | 19,935.1 |  |  |  | 20,514.9 |  |  |  | 22,734.9 |
Wafer revenue |  | $ | 927,317.3 |  |  | $ | 1,178,456.3 |  |  | $ | 1,405,300.3 |
Summary of Contract Balances |
| b. | Contract balances
|  | January 1, 2020 |  |  | December 31, 2020 |  |  | December 31, 2021 |
|  | NT$ |  |  | NT$ |  |  | NT$ |
|  | (In Millions) |  |  | (In Millions) |  |  | (In Millions) |
Contract liabilities (classified under accrued expenses and other current liabilities) |  | $ | 6,784.3 |  |  | $ | 13,775.1 |  |  | $ | 39,762.6 |
Summary of Temporary Receipts from Customers |
| c. | Temporary receipts from customers
|  | December 31, 2021 |
|  | NT$ |
|  | (In Millions) |
Current portion (classified under accrued expenses and other current liabilities) |  | $ | 30,612.7 |
Noncurrent portion (classified under other noncurrent liabilities) |  |  | 155,381.5 |
|  | $ | 185,994.2 |

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