ASSETS AND LIABILITIES HELD FOR SALE - Significant Disposals (Details) - USD ($)
$ in Millions |
3 Months Ended |
Mar. 31, 2018 |
Dec. 31, 2017 |
Mar. 31, 2017 |
| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
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|
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| Impairment charges |
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|
$ 1
|
| Disposal Group, Disposed of by Sale, Not Discontinued Operations |
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| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
|
|
|
| Income (loss) from continuing operations, before income taxes |
$ 92
|
|
4
|
| Disposal Group, Held-for-sale, Not Discontinued Operations |
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| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
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| Income (loss) from continuing operations, before income taxes |
(13)
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|
(6)
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| Houston | Disposal Group, Disposed of by Sale, Not Discontinued Operations |
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| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
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| Income (loss) from continuing operations, before income taxes |
0
|
|
15
|
| Philadelphia | Disposal Group, Disposed of by Sale, Not Discontinued Operations |
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| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
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| Income (loss) from continuing operations, before income taxes |
(9)
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|
(14)
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| MacNeal | Disposal Group, Disposed of by Sale, Not Discontinued Operations |
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|
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| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
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|
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| Income (loss) from continuing operations, before income taxes |
101
|
|
3
|
| Gain on sale |
98
|
|
|
| Chicago-area | Disposal Group, Held-for-sale, Not Discontinued Operations |
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| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
|
|
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| Income (loss) from continuing operations, before income taxes |
(16)
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|
(4)
|
| Impairment charges |
17
|
$ 73
|
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| Aspen | Disposal Group, Held-for-sale, Not Discontinued Operations |
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|
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| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
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|
|
| Income (loss) from continuing operations, before income taxes |
$ 3
|
|
$ (2)
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