Statement Of Changes In Equity [Abstract]

Bunzl PLC - Filing #1866510

Concept	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 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	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-01-01	As at 2022-01-01	As at 2022-01-01	As at 2022-01-01	As at 2022-01-01	As at 2022-01-01	As at 2022-01-01	As at 2022-01-01	As at 2022-01-01	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	2,720,900,000 GBP	—	—	—	—	199,400,000 GBP	16,100,000 GBP	2,532,900,000 GBP	108,500,000 GBP	74,200,000 GBP	63,400,000 GBP	2,500,000 GBP	900,000 GBP	—	—	400,000 GBP	269,200,000 GBP	2,217,000,000 GBP	194,200,000 GBP	108,400,000 GBP	2,216,500,000 GBP	2,500,000 GBP	16,100,000 GBP	52,900,000 GBP	2,204,400,000 GBP	16,100,000 GBP	—	2,500,000 GBP	400,000 GBP	2,203,900,000 GBP	2,203,900,000 GBP	—	400,000 GBP	16,100,000 GBP	194,200,000 GBP	52,900,000 GBP	2,204,400,000 GBP	12,600,000 GBP	108,400,000 GBP	12,600,000 GBP	269,200,000 GBP	52,900,000 GBP	—	269,200,000 GBP	2,500,000 GBP	—	194,200,000 GBP	108,400,000 GBP	—	—	1,873,100,000 GBP	4,300,000 GBP	108,300,000 GBP	2,500,000 GBP	73,400,000 GBP	187,700,000 GBP	190,900,000 GBP	1,919,100,000 GBP	16,100,000 GBP
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	—	474,400,000 GBP	474,400,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	442,800,000 GBP	442 .8 GBP	—	—	—	—	—	—	—	—	—
Other comprehensive income	—	—	208,200,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	19,100,000 GBP	—	—	—	—	—	—	—	—	—	—
Comprehensive income	—	—	682,600,000 GBP	479,900,000 GBP	7,700,000 GBP	—	—	—	—	—	—	—	—	—	195,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	3,600,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	78,300,000 GBP	—	—	—	—	—	423,700,000 GBP	498,400,000 GBP	—	—	—	—	—	—	—	—	—
Issue of equity	—	100,000 GBP	5,300,000 GBP	—	—	—	—	—	—	—	—	—	—	5,200,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	6,500,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	100,000 GBP	—	—	6,600,000 GBP	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	—	—	15,300,000 GBP	15,300,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	18,300,000 GBP	18,300,000 GBP	—	—	—	—	—	—	—	—	—
Amount removed from reserve of cash flow hedges and included in initial cost or other carrying amount of non-financial asset (liability) or firm commitment for which fair value hedge accounting is applied	—	—	9,000,000 GBP	—	9,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1,100,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1,100,000 GBP	—	—	—	—	—	—	—	—	—	—