XML 36 R37.htm IDEA: XBRL DOCUMENT

Significant Accounting Policies - Amounts Due To Government Agencies (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Medicaid program:
Medical cost floors and corridors	$ 95	$ 103
Other amounts due to states	69	81
Marketplace program:
Risk adjustment	285	466
Cost sharing reduction	0	183
Other	163	134
Total amounts due government agencies	$ 612	$ 967