Business Acquisitions (Tables)

12 Months Ended

Dec. 31, 2022

Business Combinations [Abstract]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

Acquired tangible assets (liabilities) at the acquisition date were:

	2022		2021
Cash, cash equivalents and short-term investments	$	170	$	808
Accounts receivable and other current assets	240		295
Property, equipment and other long-term assets	109		102
Medical claims and other policyholder liabilities payable	(185)		(571)
Accounts payable and other current liabilities	(20)		(179)
Other long-term liabilities	(15)		(6)
Deferred tax liabilities	(32)		(556)
Total net tangible assets	$	267	$	(107)

Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]

Acquisition date fair values and weighted-average useful lives assigned to intangible assets include:

	2022			2021
	Fair Value		Weighted Average Useful Life	Fair Value		Weighted Average Useful Life
Customer-related	$	85	10 years	$	1,313	13 years
Provider and hospital relationships	2		15 years	240		14 years
Other	2		0.5 years	24		13 years
State Medicaid licenses	250		Indefinite	20		Indefinite
Total intangible assets	$	339		$	1,597