Disclosure Of First-Time Adoption [Text Block]

Grainger PLC - Filing #2515905

Concept	As at 2024-09-30	2023-10-01 to 2024-09-30	2023-10-01 to 2024-09-30	As at 2024-09-30	As at 2024-09-30	As at 2024-09-30	As at 2024-09-30	As at 2024-09-30	2023-10-01 to 2024-09-30	2023-10-01 to 2024-09-30	2023-10-01 to 2024-09-30	As at 2024-09-30	2023-10-01 to 2024-09-30	2023-10-01 to 2024-09-30	2022-10-01 to 2023-09-30	As at 2023-09-30	2022-10-01 to 2023-09-30	2022-10-01 to 2023-09-30	As at 2023-09-30	2022-10-01 to 2023-09-30	As at 2023-09-30	As at 2023-09-30	2022-10-01 to 2023-09-30	As at 2023-09-30	2022-10-01 to 2023-09-30	As at 2023-09-30	As at 2023-09-30	2022-10-01 to 2023-09-30	As at 2022-09-30	As at 2022-09-30	As at 2022-09-30	As at 2022-09-30	As at 2022-09-30	As at 2022-09-30	As at 2022-09-30
Disclosure of first-time adoption [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of comparative information prepared under previous GAAP [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of comparative information prepared under previous GAAP [abstract]
Disclosure of comparative information prepared under previous GAAP [line items]
Equity	1,893,700,000 GBP	—	—	20,100,000 GBP	37,200,000 GBP	4,400,000 GBP	817,900,000 GBP	1,013,800,000 GBP	—	—	—	300,000 GBP	—	—	—	20,000,000 GBP	—	—	20,100,000 GBP	—	1,033,200,000 GBP	817,800,000 GBP	—	37,200,000 GBP	—	1,928,600,000 GBP	300,000 GBP	—	32,100,000 GBP	20,100,000 GBP	817,600,000 GBP	1,966,800,000 GBP	1,059,600,000 GBP	37,100,000 GBP	300,000 GBP
Comprehensive income	—	15,600,000 GBP	– GBP	—	—	—	—	—	28,900,000 GBP	– GBP	– GBP	—	– GBP	13,300,000 GBP	12,100,000 GBP	—	24,800,000 GBP	– GBP	—	– GBP	—	—	– GBP	—	– GBP	—	—	12,700,000 GBP	—	—	—	—	—	—	—
Profit (loss)	—	– GBP	– GBP	—	—	—	—	—	31,200,000 GBP	– GBP	– GBP	—	– GBP	31,200,000 GBP	– GBP	—	25,600,000 GBP	– GBP	—	– GBP	—	—	– GBP	—	– GBP	—	—	25,600,000 GBP	—	—	—	—	—	—	—