Disclosure Of Entity's Operating Segments [Text Block]

Halma PLC - Filing #1662765

Concept	2021-04-01 to 2022-03-31	2021-04-01 to 2022-03-31	2021-04-01 to 2022-03-31	2021-04-01 to 2022-03-31	2021-04-01 to 2022-03-31	2021-04-01 to 2022-03-31	2021-04-01 to 2022-03-31	2021-04-01 to 2022-03-31	2021-04-01 to 2022-03-31	2021-04-01 to 2022-03-31	2021-04-01 to 2022-03-31	2021-04-01 to 2022-03-31	As at 2022-03-31	2021-04-01 to 2022-03-31	2020-04-01 to 2021-03-31	2020-04-01 to 2021-03-31	2020-04-01 to 2021-03-31	As at 2021-03-31	2020-04-01 to 2021-03-31	2020-04-01 to 2021-03-31	2020-04-01 to 2021-03-31	2020-04-01 to 2021-03-31	2020-04-01 to 2021-03-31	2020-04-01 to 2021-03-31	2020-04-01 to 2021-03-31	2020-04-01 to 2021-03-31	2020-04-01 to 2021-03-31	2020-04-01 to 2021-03-31
Disclosure of entity's operating segments [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of operating segments [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of operating segments [abstract]
Disclosure of operating segments [line items]
Revenue	– GBP	1,525,300,000 GBP	—	1,525,300,000 GBP	—	—	—	—	—	—	—	—	—	—	1,318,200,000 GBP	1,318,200,000 GBP	– GBP	—	—	—	—	—	—	—	—	—	—	—
Share of profit (loss) of associates and joint ventures accounted for using equity method	– GBP	100,000 GBP	—	100,000 GBP	—	—	—	—	—	—	—	—	—	—	– GBP	– GBP	– GBP	—	—	—	—	—	—	—	—	—	—	—
Tax expense (income)	8,100,000 GBP	68,300,000 GBP	—	60,200,000 GBP	—	—	—	—	—	—	—	—	—	—	49,600,000 GBP	55,800,000 GBP	6,200,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Profit (loss) before tax	11,800,000 GBP	316,200,000 GBP	—	304,400,000 GBP	—	—	—	—	—	—	—	—	—	—	252,900,000 GBP	278,300,000 GBP	25,400,000 GBP	—	—	—	—	—	—	—	—	—	—	—
Profit (loss)	3,700,000 GBP	247,900,000 GBP	– GBP	244,200,000 GBP	– GBP	– GBP	200,000 GBP	244,400,000 GBP	– GBP	– GBP	– GBP	244,200,000 GBP	—	– GBP	203,300,000 GBP	222,500,000 GBP	19,200,000 GBP	—	– GBP	– GBP	– GBP	– GBP	203,300,000 GBP	– GBP	– GBP	203,400,000 GBP	– GBP	100,000 GBP
Assets	—	—	—	—	—	—	—	—	—	—	—	—	2,197,000,000 GBP	—	—	—	—	1,877,900,000 GBP	—	—	—	—	—	—	—	—	—	—
Liabilities	—	—	—	—	—	—	—	—	—	—	—	—	793,900,000 GBP	—	—	—	—	710,300,000 GBP	—	—	—	—	—	—	—	—	—	—
Cash flows from (used in) operating activities	—	—	—	—	—	—	—	—	—	—	—	237,400,000 GBP	—	—	—	—	—	—	—	—	—	—	277,600,000 GBP	—	—	—	—	—
Cash flows from (used in) investing activities	—	—	—	—	—	—	—	—	—	—	—	134,700,000 GBP	—	—	—	—	—	—	—	—	—	—	64,200,000 GBP	—	—	—	—	—
Cash flows from (used in) financing activities	—	—	—	—	—	—	—	—	—	—	—	81,900,000 GBP	—	—	—	—	—	—	—	—	—	—	183,500,000 GBP	—	—	—	—	—
Disclosure of products and services [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of products and services [abstract]
Disclosure of products and services [line items]
Disclosure of geographical areas [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of geographical areas [abstract]
Disclosure of geographical areas [line items]
Disclosure of major customers [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of major customers [abstract]
Disclosure of major customers [line items]