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SEGMENT INFORMATION - Schedule of Reconciliation of Operating Earnings from Segment to Consolidated (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018
Segment Reporting Information [Line Items] |  |  |  |  |
Total consolidated operating earnings | $ 338 | $ 189 | $ 1,081 | $ 868 |
Assets | 5,922 |  | 5,922 |  | $ 5,873
Segment Balances Before Intersegment Eliminations and Consolidation Reconciling Items [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total consolidated operating earnings | 373 | 223 | 1,171 | 972 |
Assets | 2,803 |  | 2,803 |  | 2,684
Eliminations and Unallocated in Consolidation [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total consolidated operating earnings | (35) | (34) | (90) | (104) |
Assets | 103 |  | 103 |  | 310
Segment Reconciling Items [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Assets | 3,016 |  | 3,016 |  | 2,879
United States And Canada Segments [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total consolidated operating earnings | 343 | 322 | 1,084 | 994 |
United States And Canada Segments [Member] | Segment Balances Before Intersegment Eliminations and Consolidation Reconciling Items [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total consolidated operating earnings | 343 | 322 | 1,084 | 994 |
Other Businesses [Member] | Segment Balances Before Intersegment Eliminations and Consolidation Reconciling Items [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total consolidated operating earnings | 30 | (99) | 87 | (22) |
United States [Member] | Segment Balances Before Intersegment Eliminations and Consolidation Reconciling Items [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total consolidated operating earnings | 343 | 326 | 1,088 | 1,032 |
Assets | 2,637 |  | 2,637 |  | 2,496
Canada [Member] | Segment Balances Before Intersegment Eliminations and Consolidation Reconciling Items [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total consolidated operating earnings | 0 | $ (4) | (4) | $ (38) |
Assets | $ 166 |  | $ 166 |  | $ 188

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