Other receivables

9 Months Ended

Sep. 30, 2019

Receivables [Abstract]

Other receivables

Note 8. Other receivables

Other receivables of insurance and other businesses are comprised of the following (in millions).

	September 30, 2019			December 31, 2018
Insurance premiums receivable	$	13,906		$	12,452
Reinsurance recoverable on unpaid losses		3,105			3,060
Trade receivables		12,852			12,617
Other		5,035			3,823
Allowances for uncollectible accounts		(387	)		(388	)
	$	34,511		$	31,564

Receivables of railroad and utilities and energy businesses are comprised of the following (in millions).  

	September 30, 2019			December 31, 2018
Trade receivables	$	3,551		$	3,433
Other		342			362
Allowances for uncollectible accounts		(137	)		(129	)
	$	3,756		$	3,666

Notes to Consolidated Financial Statements (Continued)

Note 8. Other receivables (Continued)

Trade receivables include unbilled revenue of $657 million and $554 million as of September 30, 2019 and December 31, 2018, respectively, attributable to the regulated utility businesses.