CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) shares in Millions, $ in Millions	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Income Statement [Abstract]
Net sales	$ 4,306	$ 4,235
Cost of goods sold	2,596	2,567
Gross profit	1,710	1,668
Selling, general and administrative expenses	1,038	999
Operating earnings	672	669
Other expense (income):
Interest expense – net	21	21
Other – net	(6)	(7)
Total other expense – net	15	14
Earnings before income taxes	657	655
Income tax provision	157	158
Net earnings	500	497
Less net earnings attributable to noncontrolling interest	21	19
Net earnings attributable to W.W. Grainger, Inc.	$ 479	$ 478
Earnings per share:
Basic (in dollars per share)	$ 9.88	$ 9.65
Diluted (in dollars per share)	$ 9.86	$ 9.62
Weighted average number of shares outstanding:
Basic (in shares)	48.2	49.2
Diluted (in shares)	48.3	49.4

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(2)(d))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(2)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 924
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479941/924-10-S99-1