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Contract and Other Deferred Assets (Tables)

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Contract assets are comprised of the following at December 31:



	2019		2018
Long-term product service agreements	$	603	$	609
Long-term equipment contracts ⁽¹⁾	1,097		1,085
Contract assets (total revenue in excess of billings)	1,700		1,694
Deferred inventory costs	130		179
Non-recurring engineering costs	51		21
Contract and other deferred assets	$	1,881	$	1,894

⁽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:



	2019		2018
Progress collections	$	2,760	$	1,600
Deferred income	110		165
Progress collections and deferred income (contract liabilities)	$	2,870	$	1,765