XML 19 R9.htm IDEA: XBRL DOCUMENT v3.21.2

CONDENSED CONSOLIDATED STATEMENT OF SHAREDHOLDERS' EQUITY CONDENSED CONSOLIDATED STATEMENT OF SHAREDHOLDERS' EQUITY (PARENTHETICAL) - $ / shares	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Stockholders' Equity (Parentheticals) [Abstract]
Cash dividends paid per share (in dollars per share)	$ 1.62	$ 1.53	$ 1.44	$ 1.44	$ 3.15	$ 2.88

X

- Definition

Statement of Stockholders' Equity (Parentheticals) [Abstract]

+ References

No definition available.

+ Details

Name:	gww_StatementofStockholdersEquityParentheticalsAbstract
Namespace Prefix:	gww_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

+ Details

Name:	us-gaap_CommonStockDividendsPerShareCashPaid
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration