Statement Of Changes In Equity [Abstract]

Banco Comercial Portugues - Filing #5719284

Concept	As at 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	384,402,000 EUR	—	—	—	—	—	—	—	16,471,000 EUR	3,000,000,000 EUR	1,097,714,000 EUR	—	—	2,387,592,000 EUR	400,000,000 EUR	906,378,000 EUR	—	—	—	8,192,557,000 EUR	—	—	—	—	—	—	7,290,406,000 EUR	—	—	—	—	—	1,714,083,000 EUR	—	987,427,000 EUR	16,471,000 EUR	—	3,000,000,000 EUR	400,000,000 EUR	—	856,050,000 EUR	316,375,000 EUR	5,936,767,000 EUR	268,534,000 EUR	1,272,262,000 EUR	782,114,000 EUR	16,471,000 EUR	3,000,000,000 EUR	5,927,675,000 EUR	782,114,000 EUR	400,000,000 EUR	1,263,170,000 EUR	16,471,000 EUR	3,000,000,000 EUR	268,534,000 EUR	197,386,000 EUR	9,092,000 EUR	400,000,000 EUR	9,092,000 EUR	197,386,000 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	—	1,000,483,000 EUR	—	906,378,000 EUR	—	—	—	—	—	—	94,105,000 EUR	1,000,161,000 EUR	—	—	—	—	—	322,000 EUR	—	906,378,000 EUR	—	—	—	950,461,000 EUR	—	—	947,609,000 EUR	856,050,000 EUR	856,050,000 EUR	—	91,559,000 EUR	—	—	—	—	—	—	—	2,852,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	—	—	222,622,000 EUR	177,730,000 EUR	177,730,000 EUR	—	—	—	—	—	—	44,892,000 EUR	222,622,000 EUR	—	—	—	—	—	— EUR	—	—	—	—	—	475,960,000 EUR	—	—	475,960,000 EUR	—	338,447,000 EUR	338,447,000 EUR	137,513,000 EUR	—	—	—	—	—	—	—	— EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	—	— EUR	1,223,105,000 EUR	177,730,000 EUR	1,084,108,000 EUR	— EUR	— EUR	— EUR	—	—	—	138,997,000 EUR	1,222,783,000 EUR	—	—	—	—	—	322,000 EUR	—	906,378,000 EUR	—	— EUR	—	1,426,421,000 EUR	— EUR	—	1,423,569,000 EUR	856,050,000 EUR	1,194,497,000 EUR	338,447,000 EUR	229,072,000 EUR	—	— EUR	—	—	— EUR	—	—	2,852,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	—	—	—	256,938,000 EUR	—	—	—	—	—	—	—	—	256,938,000 EUR	—	—	—	28,727,000 EUR	28,727,000 EUR	—	—	—	23,719,000 EUR	—	23,719,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through other changes, equity	—	—	—	32,000 EUR	—	—	—	—	—	—	—	17,000 EUR	15,000 EUR	—	—	—	—	—	—	—	—	—	—	—	119,000 EUR	—	—	—	—	—	79,000 EUR	40,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—