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SEGMENT INFORMATION - Summary of Segment Results (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018
Segment Reporting Information [Line Items] |  |  |  |  |
TOTAL ASSETS | $ 5,992 |  | $ 5,992 |  | $ 5,873
Summarized Information |  |  |  |  |
Net sales to external customers | 2,893 | $ 2,861 | 5,692 | $ 5,627 |
Total consolidated operating earnings | 380 | 344 | 743 | 679 |
United States [Member] |  |  |  |  |
Summarized Information |  |  |  |  |
Net sales to external customers | 2,095 | 2,062 | 4,126 | 4,060 |
Canada [Member] |  |  |  |  |
Summarized Information |  |  |  |  |
Net sales to external customers | 135 | 177 | 271 | 359 |
United States And Canada Segments [Member] |  |  |  |  |
Summarized Information |  |  |  |  |
Net sales to external customers | 2,230 | 2,239 | 4,397 | 4,419 |
Total consolidated operating earnings | 382 | 335 | 741 | 672 |
Other Businesses [Member] |  |  |  |  |
Summarized Information |  |  |  |  |
Net sales to external customers | 663 | 622 | 1,295 | 1,208 |
Segment Balances Before Intersegment Eliminations and Consolidation Reconciling Items [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
TOTAL ASSETS | 2,797 |  | 2,797 |  | 2,684
Summarized Information |  |  |  |  |
Net sales to external customers | 3,020 | 2,974 | 5,938 | 5,852 |
Total consolidated operating earnings | 409 | 376 | 798 | 749 |
Segment Balances Before Intersegment Eliminations and Consolidation Reconciling Items [Member] | United States [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
TOTAL ASSETS | 2,625 |  | 2,625 |  | 2,496
Summarized Information |  |  |  |  |
Net sales to external customers | 2,222 | 2,175 | 4,371 | 4,283 |
Total consolidated operating earnings | 381 | 349 | 745 | 706 |
Segment Balances Before Intersegment Eliminations and Consolidation Reconciling Items [Member] | Canada [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
TOTAL ASSETS | 172 |  | 172 |  | $ 188
Summarized Information |  |  |  |  |
Net sales to external customers | 135 | 177 | 271 | 359 |
Total consolidated operating earnings | 1 | (14) | (4) | (34) |
Segment Balances Before Intersegment Eliminations and Consolidation Reconciling Items [Member] | United States And Canada Segments [Member] |  |  |  |  |
Summarized Information |  |  |  |  |
Net sales to external customers | 2,357 | 2,352 | 4,642 | 4,642 |
Total consolidated operating earnings | 382 | 335 | 741 | 672 |
Segment Balances Before Intersegment Eliminations and Consolidation Reconciling Items [Member] | Other Businesses [Member] |  |  |  |  |
Summarized Information |  |  |  |  |
Net sales to external customers | 663 | 622 | 1,296 | 1,210 |
Total consolidated operating earnings | 27 | 41 | 57 | 77 |
Intersegment Eliminations [Member] |  |  |  |  |
Summarized Information |  |  |  |  |
Net sales to external customers | (127) | (113) | (246) | (225) |
Intersegment Eliminations [Member] | United States [Member] |  |  |  |  |
Summarized Information |  |  |  |  |
Net sales to external customers | (127) | (113) | (245) | (223) |
Intersegment Eliminations [Member] | Canada [Member] |  |  |  |  |
Summarized Information |  |  |  |  |
Net sales to external customers | 0 | 0 | 0 | 0 |
Intersegment Eliminations [Member] | United States And Canada Segments [Member] |  |  |  |  |
Summarized Information |  |  |  |  |
Net sales to external customers | (127) | (113) | (245) | (223) |
Intersegment Eliminations [Member] | Other Businesses [Member] |  |  |  |  |
Summarized Information |  |  |  |  |
Net sales to external customers | $ 0 | $ 0 | $ (1) | $ (2) |

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