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Progress Collections and Deferred Income (Tables) | 12 Months Ended
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Dec. 31, 2021
Revenue Recognition and Deferred Revenue [Abstract] |
Schedule of Contract Liabilities | Contract assets are comprised of the following at December 31:
| 2021 | 2020
Long-term product service agreements | $ | 589 |  | $ | 660 |
Long-term equipment contracts (1) | 825 |  | 1,160 |
Contract assets (total revenue in excess of billings) | 1,414 |  | 1,820 |
Deferred inventory costs | 156 |  | 138 |
Non-recurring engineering costs | 28 |  | 43 |
Contract and other deferred assets | $ | 1,598 |  | $ | 2,001 |
(1)Reflects revenue earned in excess of billings on our long-term contracts to construct technically complex equipment and certain other service agreements. Contract liabilities are comprised of the following at December 31:
| 2021 | 2020
Progress collections | $ | 3,108 |  | $ | 3,352 |
Deferred income | 124 |  | 102 |
Progress collections and deferred income (contract liabilities) | $ | 3,232 |  | $ | 3,454 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045 + Details
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