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SUPPLEMENTAL CASH FLOW & OTHER DATA (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Supplemental Cash Flow Elements [Abstract] |  |  |  |
Depreciation expense | $ 56 | $ 55 | $ 116 | $ 107
Amortization expense | 25 | 22 | 49 | 44
Depreciation and amortization expense | 81 | 77 | 165 | 151
Interest expense | (46) | (43) | (91) | (84)
Interest income | 1 | 1 | 2 | 1
Interest expense, net | (45) | (42) | (89) | (83)
Interest paid | 63 | 37 | 91 | 86
Income taxes paid | 80 | 39 | 83 | 41
Assets acquired under capital leases | 0 | 1 | 0 | 1
Accounts payable associated with capital expenditures | 15 | 13 | 15 | 13
Dividends payable | 72 | 69 | 72 | 69
Fair value of assets acquired | 0 | 35 | 61 | 183
Fair value of liabilities assumed | 0 | 0 | 0 | (1)
Fair value of net assets acquired | 0 | 35 | 61 | 182
Merger consideration paid (payable), net | 0 | 0 | (5) | (12)
Cash paid for business acquisitions | 0 | 35 | 56 | 170
Less: Cash acquired | 0 | 0 | 0 | 5
Business acquisitions, net of cash acquired | 0 | $ 35 | 56 | $ 165
Leases: |  |  |  |
Operating cash flows from operating leases | 45 |  | 90 |
Operating cash flows from finance leases | 1 |  | 2 |
Financing cash flows from finance leases | 1 |  | 2 |
Leased assets obtained in exchange for new operating lease liabilities | $ 53 |  | $ 78 |

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