Medical Costs Payable (Tables)

9 Months Ended

Sep. 30, 2020

Insurance [Abstract]

Schedule of Liability for Unpaid Claims and Claims Adjustment Expense

The following table shows the components of the change in medical costs payable for the nine months ended September 30:

(in millions)	2020		2019
Medical costs payable, beginning of period	$	21,690	$	19,891
Acquisitions	186		868
Reported medical costs:
Current year	118,114		117,624
Prior years	(800)		(460)
Total reported medical costs	117,314		117,164
Medical payments:
Payments for current year	(98,548)		(99,487)
Payments for prior years	(19,475)		(17,497)
Total medical payments	(118,023)		(116,984)
Medical costs payable, end of period	$	21,167	$	20,939