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Supplemental Disclosures to the Consolidated Statements of Cash Flows (Additional Information Concerning Acquisitions, Interest And Income Taxes Paid) (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019
Supplemental Cash Flow Information [Abstract] |  |
Assets acquired, excluding cash | $ 249 | $ 180
Liabilities assumed | (5) | (5)
Contingent/deferred purchase consideration | (44) | (35)
Net cash outflow for current year acquisitions | 200 | 140
Interest paid | 199 | 98
Income taxes paid, net of refunds | $ 136 | $ 131

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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586 + Details
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