Profit Or Loss [Abstract]

Grainger PLC - Filing #1807285

Concept	2021-10-01 to 2022-09-30	2021-10-01 to 2022-09-30	2021-10-01 to 2022-09-30	2021-10-01 to 2022-09-30	2021-10-01 to 2022-09-30	2021-10-01 to 2022-09-30	2021-10-01 to 2022-09-30	2020-10-01 to 2021-09-30	2020-10-01 to 2021-09-30	2020-10-01 to 2021-09-30	2020-10-01 to 2021-09-30	2020-10-01 to 2021-09-30	2020-10-01 to 2021-09-30	2020-10-01 to 2021-09-30
Profit or loss [abstract]
Profit (loss) [abstract]
Revenue	27 9. 2 GBP	—	—	—	—	—	—	—	24 8 .9 GBP	—	—	—	—	—
Administrative expenses	31. 8 GBP	—	—	—	—	—	—	—	38 .5 GBP	—	—	—	—	—
Other expense, by function	10 . 3 GBP	—	—	—	—	—	—	—	0. 6 GBP	—	—	—	—	—
Profit (loss) from operating activities	12 2 . 2 GBP	—	—	—	—	—	—	—	113 . 8 GBP	—	—	—	—	—
Finance income	1. 3 GBP	—	—	—	—	—	—	—	200,000 GBP	—	—	—	—	—
Finance costs	34,600,000 GBP	—	—	—	—	—	—	—	35 . 4 GBP	—	—	—	—	—
Profit (loss) before tax	29 8 .6 GBP	—	—	—	—	—	—	—	1 5 2 .1 GBP	—	—	—	—	—
Tax expense (income)	6 9 . 2 GBP	—	—	—	—	—	—	—	42 .6 GBP	—	—	—	—	—
Profit (loss)	229 .4 GBP	– GBP	– GBP	– GBP	– GBP	– GBP	229. 4 GBP	– GBP	10 9 . 5 GBP	– GBP	– GBP	10 9. 5 GBP	– GBP	– GBP
Profit (loss), attributable to [abstract]
Profit (loss), attributable to owners of parent	229. 4 GBP	—	—	—	—	—	—	—	10 9. 5 GBP	—	—	—	—	—
Earnings per share [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Earnings per share [abstract]
Earnings per share [line items]
Basic earnings per share [abstract]
Basic earnings (loss) per share	31. 0	—	—	—	—	—	—	—	16 . 2	—	—	—	—	—
Diluted earnings per share [abstract]
Diluted earnings (loss) per share	0	—	—	—	—	—	—	—	16 .1	—	—	—	—	—