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Restructuring and Transaction Costs - (Schedule Of Restructuring And Transaction Costs) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
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Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Restructuring Cost And Reserve [Line Items] |  |  |  |
Restructuring costs | $ 18 | $ 32 | $ 230 | $ 32
Other Restructuring [Member] |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Restructuring costs | 16 | $ 32 | 182 | $ 32
Transaction Costs [Member] |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Restructuring costs | $ 2 |  | $ 48 |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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- Details
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- Details
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