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Trade and Other Receivables - Trade and Other Receivables (Details) - KRW (₩) ₩ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | ₩ 12,614,902 |  | ₩ 10,029,276 |
Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 10,461,822 |  | 8,122,415 |
Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 2,153,080 |  | 1,906,861 |
Gross amount |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 12,937,068 |  | 10,324,255 |
Gross amount | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 10,705,408 |  | 8,345,848 |
Gross amount | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 2,231,660 |  | 1,978,407 |
Allowance for doubtful accounts |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (308,453) |  | (288,049) |
Allowance for doubtful accounts | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (241,217) |  | (222,393) |
Allowance for doubtful accounts | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (67,236) |  | (65,656) |
Present value discount |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (13,713) |  | (6,930) |
Present value discount | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (2,369) |  | (1,040) |
Present value discount | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (11,344) |  | (5,890) |
Trade receivables |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 9,699,835 |  | 7,723,908 |
Trade receivables | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 9,504,051 |  | 7,539,897 |
Trade receivables | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 195,784 |  | 184,011 |
Trade receivables | Gross amount |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 9,898,835 |  | 7,929,247 |
Trade receivables | Gross amount | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 9,700,880 |  | 7,743,735 |
Trade receivables | Gross amount | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 197,955 |  | 185,512 |
Trade receivables | Allowance for doubtful accounts |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (199,000) |  | (205,339) |
Trade receivables | Allowance for doubtful accounts | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (196,829) |  | (203,838) |
Trade receivables | Allowance for doubtful accounts | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (2,171) |  | (1,501) |
Trade receivables | Present value discount | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 0 |  | 0 |
Trade receivables | Present value discount | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 0 |  | 0 |
Other receivables |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 2,915,067 |  | 2,305,368 |
Other receivables | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 957,771 |  | 582,518 |
Other receivables | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 1,957,296 |  | 1,722,850 |
Other receivables | Gross amount |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 3,038,233 |  | 2,395,008 |
Other receivables | Gross amount | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 1,004,528 |  | 602,113 |
Other receivables | Gross amount | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 2,033,705 |  | 1,792,895 |
Other receivables | Allowance for doubtful accounts |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (109,453) |  | (82,710) |
Other receivables | Allowance for doubtful accounts | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (44,388) |  | (18,555) |
Other receivables | Allowance for doubtful accounts | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (65,065) |  | (64,155) |
Other receivables | Present value discount |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (13,713) |  | (6,930) |
Other receivables | Present value discount | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (2,369) |  | (1,040) |
Other receivables | Present value discount | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (11,344) |  | (5,890) |
Non-trade receivables | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 417,931 |  | 215,079 |
Non-trade receivables | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 87,250 |  | 66,849 |
Non-trade receivables | Gross amount | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 459,245 |  | 232,172 |
Non-trade receivables | Gross amount | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 140,128 |  | 123,537 |
Non-trade receivables | Allowance for doubtful accounts | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (41,293) |  | (17,084) |
Non-trade receivables | Allowance for doubtful accounts | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (52,696) |  | (56,407) |
Non-trade receivables | Present value discount | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (21) |  | (9) |
Non-trade receivables | Present value discount | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (182) |  | (281) |
Accrued income | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 109,267 |  | 57,300 |
Accrued income | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 2,004 |  | 1,828 |
Accrued income | Gross amount | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 109,267 |  | 57,300 |
Accrued income | Gross amount | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 2,004 |  | 1,828 |
Accrued income | Allowance for doubtful accounts | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 0 |  | 0 |
Accrued income | Allowance for doubtful accounts | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 0 |  | 0 |
Accrued income | Present value discount | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 0 |  | 0 |
Accrued income | Present value discount | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 0 |  | 0 |
Deposits | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 287,232 |  | 211,635 |
Deposits | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 448,699 |  | 435,784 |
Deposits | Gross amount | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 289,580 |  | 212,666 |
Deposits | Gross amount | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 459,861 |  | 441,393 |
Deposits | Allowance for doubtful accounts | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 0 |  | 0 |
Deposits | Allowance for doubtful accounts | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 0 |  | 0 |
Deposits | Present value discount | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (2,348) |  | (1,031) |
Deposits | Present value discount | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (11,162) |  | (5,609) |
Finance lease receivables | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 65,781 | [1] | 60,435 | [2]
Finance lease receivables | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 1,169,104 | [3] | 1,139,490 | [4]
Finance lease receivables | Gross amount | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 67,583 | [1] | 60,613 | [2]
Finance lease receivables | Gross amount | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 1,171,807 | [3] | 1,140,080 | [4]
Finance lease receivables | Allowance for doubtful accounts | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (1,802) | [1] | (178) | [2]
Finance lease receivables | Allowance for doubtful accounts | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (2,703) | [3] | (590) | [4]
Finance lease receivables | Present value discount | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 0 | [1] | 0 | [2]
Finance lease receivables | Present value discount | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 0 | [3] | 0 | [4]
Others | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 77,560 |  | 38,069 |
Others | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 250,239 |  | 78,899 |
Others | Gross amount | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 78,853 |  | 39,362 |
Others | Gross amount | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 259,905 |  | 86,057 |
Others | Allowance for doubtful accounts | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (1,293) |  | (1,293) |
Others | Allowance for doubtful accounts | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | (9,666) |  | (7,158) |
Others | Present value discount | Current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | 0 |  | 0 |
Others | Present value discount | Non-current assets |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Trade and other receivables | ₩ 0 |  | ₩ 0 |
[1] | Gross amount of finance lease receivables is the net lease investment by deducting unearned finance income of ￦114,347 million.
[2] | Gross amount of finance lease receivables is the net lease investment by deducting unearned finance income of ￦111,915 million.
[3] | Gross amount of finance lease receivables is the net lease investment by deducting unearned finance income of ￦1,024,927 million.
[4] | Gross amount of finance lease receivables is the net lease investment by deducting unearned finance income of ￦1,082,712 million.

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