Medical Costs Payable (Tables)

3 Months Ended

Mar. 31, 2020

Insurance [Abstract]

Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]

The following table shows the components of the change in medical costs payable for the three months ended March 31:

(in millions)	2020			2019
Medical costs payable, beginning of period	$	21,690		$	19,891
Acquisitions	—			35
Reported medical costs:
Current year	41,580			39,239
Prior years	(580		)	(300		)
Total reported medical costs	41,000			38,939
Medical payments:
Payments for current year	(23,471		)	(22,973		)
Payments for prior years	(16,447		)	(14,753		)
Total medical payments	(39,918		)	(37,726		)
Medical costs payable, end of period	$	22,772		$	21,139