Segments - Revenue Reconciliation (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Revenue | |||
| Revenue | $ 77,147 | $ 79,591 | $ 79,139 |
| Business Segments | |||
| Revenue | |||
| Revenue | 82,419 | 84,386 | 83,329 |
| Other | |||
| Revenue | |||
| Other - divested businesses | 786 | 1,810 | 2,041 |
| Other revenue | 162 | 207 | 171 |
| Internal transactions | |||
| Revenue | |||
| Revenue | $ (6,220) | $ (6,813) | $ (6,401) |
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process, excluding amounts attributable to disposal groups. No definition available.
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- Definition Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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. No definition available.
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