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Supplemental Disclosures to the Consolidated Statements of Cash Flows (Tables) | 3 Months Ended
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Mar. 31, 2018
Supplemental Cash Flow Information [Abstract] |
Additional Information Concerning Acquisitions, Interest and Income Taxes Paid | The following schedule provides additional information concerning acquisitions, interest and income taxes paid for the three-month periods ended March 31, 2018 and 2017.
(In millions) |  | 2018 |  |  | 2017 |
Assets acquired, excluding cash |  | $ | 35 |  |  | $ | 577 |
Liabilities assumed |  | (4 | ) |  | (76 | )
Contingent/deferred purchase consideration |  | (7 | ) |  | (90 | )
Net cash outflow for current year acquisitions |  | $ | 24 |  |  | $ | 411 |
(In millions) | 2018 |  |  | 2017 |
Interest paid | $ | 80 |  |  | $ | 62 |
Income taxes paid, net of refunds | $ | 128 |  |  | $ | 100 |

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