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ACCUMULATED OTHER COMPREHENSIVE EARNINGS (LOSSES) (AOCE) (Tables) | 12 Months Ended
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Dec. 31, 2017
Stockholders' Equity Note [Abstract] |
Schedule of AOCE | The components of AOCE consisted of the following (in thousands of dollars):
| Foreign Currency Translation | Defined Postretirement Benefit Plan | Other Employment-related Benefit Plans | Other | Total | Foreign Currency Translation Attributable to Noncontrolling Interests | AOCE Attributable to W.W. Grainger, Inc.
Balance at January 1, 2015, net of tax | $ | (122,320 | ) | $ | 8,148 |  | $ | (3,302 | ) | $ | (2,185 | ) | $ | (119,659 | ) | $ | (22,986 | ) | $ | (96,673 | )
Other comprehensive earnings (loss) before reclassifications, net of tax | (154,096 | ) | 30,451 |  | 641 |  | 1,300 |  | (121,704 | ) | (532 | ) | (121,172 | )
Amounts reclassified to Warehousing, marketing and administrative expenses | — |  | (5,289 | ) | — |  | — |  | (5,289 | ) | — |  | (5,289 | )
Amounts reclassified to Income Taxes | — |  | 2,043 |  | — |  | — |  | 2,043 |  | — |  | 2,043 |
Net current period activity | $ | (154,096 | ) | $ | 27,205 |  | $ | 641 |  | $ | 1,300 |  | $ | (124,950 | ) | $ | (532 | ) | $ | (124,418 | )
Balance at December 31, 2015, net of tax | $ | (276,416 | ) | $ | 35,353 |  | $ | (2,661 | ) | $ | (885 | ) | $ | (244,609 | ) | $ | (23,518 | ) | $ | (221,091 | )
Other comprehensive earnings (loss) before reclassifications, net of tax | (38,729 | ) | (6,022 | ) | (2,397 | ) | 885 |  | (46,263 | ) | 906 |  | (47,169 | )
Amounts reclassified to Warehousing, marketing and administrative expenses | — |  | (6,559 | ) | — |  | — |  | (6,559 | ) | — |  | (6,559 | )
Amounts reclassified to Income Taxes | — |  | 2,525 |  | — |  |  |  | 2,525 |  | — |  | 2,525 |
Net current period activity | $ | (38,729 | ) | $ | (10,056 | ) | $ | (2,397 | ) | $ | 885 |  | $ | (50,297 | ) | $ | 906 |  | $ | (51,203 | )
Balance at December 31, 2016, net of tax | $ | (315,145 | ) | $ | 25,297 |  | $ | (5,058 | ) | $ | — |  | $ | (294,906 | ) | $ | (22,612 | ) | $ | (272,294 | )
Other comprehensive earnings (loss) before reclassifications, net of tax | 75,193 |  | 86,069 |  | 456 |  | — |  | 161,718 |  | 3,677 |  | 158,041 |
Amounts reclassified to Warehousing, marketing and administrative expenses | 17,518 |  | (10,007 | ) | — |  | — |  | 7,511 |  | — |  | 7,511 |
Amounts reclassified to Income Taxes | — |  | (27,932 | ) | — |  |  |  | (27,932 | ) | — |  | (27,932 | )
Net current period activity | 92,711 |  | 48,130 |  | 456 |  | — |  | 141,297 |  | 3,677 |  | 137,620 |
Balance at December 31, 2017, net of tax | $ | (222,434 | ) | $ | 73,427 |  | $ | (4,602 | ) | $ | — |  | $ | (153,609 | ) | $ | (18,935 | ) | $ | (134,674 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
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- References No definition available. + Details
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