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LEASES (Tables) | 6 Months Ended
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Jun. 30, 2019
Leases [Abstract] |
Schedule of Future Minimum Lease Payments Under Operating Leases and Payments to be Received | Future minimum lease payments repayments under non-cancellable leases as of June 30, 2019 were as follows:
Operating Leases |  | ($ million)
2019 (excluding the six months ended June 2019) |  | $ | 71 |
2020 |  | 114 |
2021 |  | 78 |
2022 |  | 55 |
2023 |  | 43 |
2024 and thereafter |  | 135 |
Total future minimum lease payments |  | $ | 496 |
Less: Interest |  | (64 | )
Total |  | $ | 432 |
Schedule of Undiscounted Lease Payments to be Received | The following table sets out a maturity analysis of operating lease payments, showing the undiscounted lease payments to be received after the reporting date:
|  | Amount
|  | (in millions)
2019 |  | $ | 148 |
2020 |  | 165 |
2021 |  | 100 |
2022 |  | 37 |
2023 and thereafter |  | 17 |
Total undiscounted lease payments |  | $ | 467 |

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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
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- Definition Tabular disclosure of maturity of undiscounted cash flows to be received by lessor on annual basis for operating lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=77888428&loc=SL77919396-209981 + Details
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