CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) shares in Millions, $ in Millions	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Net sales	$ 3,647	$ 3,084
Cost of goods sold	2,264	1,991
Gross profit	1,383	1,093
Selling, general and administrative expenses	849	735
Operating earnings	534	358
Other (income) expense:
Interest expense – net	23	21
Other – net	(6)	(6)
Total other expense – net	17	15
Earnings before income taxes	517	343
Income tax provision	132	88
Net earnings	385	255
Less net earnings attributable to noncontrolling interest	19	17
Net earnings attributable to W.W. Grainger, Inc.	$ 366	$ 238
Earnings per share:
Basic (in dollars per share)	$ 7.11	$ 4.51
Diluted (in dollars per share)	$ 7.07	$ 4.48
Weighted average number of shares outstanding:
Basic (in shares)	51.1	52.3
Diluted (in shares)	51.4	52.6

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://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 924
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2(a),(d))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227