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SEGMENT INFORMATION - Schedule of Reconciliation of Operating Earnings from Segment to Consolidated (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Segment Reporting Information [Line Items] |  |  |  |
Total consolidated operating earnings | $ 189,122 | $ 277,738 | $ 867,938 | $ 799,319
Segment Balances Before Intersegment Eliminations and Consolidation Reconciling Items [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total consolidated operating earnings | 222,391 | 306,523 | 972,107 | 898,454
Eliminations and Unallocated in Consolidation [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total consolidated operating earnings | $ (33,269) | $ (28,785) | $ (104,169) | $ (99,135)

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