XML 104 R97.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Employee Benefit Plans (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Postemployment Benefits [Abstract] |  |  |
Maximum matching contribution by employer under defined contribution plan | 4.00% |  |
Expense recognized in connection with contributions | $ 28 | $ 36 | $ 43
Deferred compensation plan deferral percentage of basic salary | 100.00% |  |
Deferred compensation plan deferral percentage of bonus | 100.00% |  |

X
- Definition Deferred compensation plan deferral percentage of basic salary. + References No definition available. + Details
Name: | moh_DeferredCompensationPlanDeferralPercentageOfBasicSalary
Namespace Prefix: | moh_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Deferred compensation plan deferral percentage of bonus. + References No definition available. + Details
Name: | moh_DeferredCompensationPlanDeferralPercentageOfBonus
Namespace Prefix: | moh_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of cost for defined contribution plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
Name: | us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_PostemploymentBenefitsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration