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Segment Information - Schedule of Operating Segment Information (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Dec. 31, 2016
Segment Reporting Information [Line Items] |  |  |  |  |
Total revenue | $ 4,999 | $ 4,359 | $ 9,903 | $ 8,702 |
Gross margin | 254 | 454 | 800 | 874 |
Impairment loss | (72) | 0 | (72) | 0 |
Restructuring and separation costs | (43) | 0 | (43) | 0 |
Total Assets | 8,583 |  | 8,583 |  | $ 7,449
Goodwill, and Intangible Assets, Net | 671 |  | 671 |  | 760
Health Plans |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total revenue | 4,868 | 4,223 | 9,639 | 8,424 |
Gross margin | 249 | 435 | 786 | 842 |
Impairment loss | 0 | 0 | 0 | 0 |
Restructuring and separation costs | 0 | 0 | 0 | 0 |
Total Assets | 6,732 |  | 6,732 |  | 5,897
Goodwill, and Intangible Assets, Net | 498 |  | 498 |  | 513
Molina Medicaid Solutions |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total revenue | 47 | 46 | 93 | 98 |
Gross margin | 4 | 5 | 8 | 11 |
Impairment loss | 0 | 0 | 0 | 0 |
Restructuring and separation costs | 0 | 0 | 0 | 0 |
Total Assets | 240 |  | 240 |  | 267
Goodwill, and Intangible Assets, Net | 72 |  | 72 |  | 72
Other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total revenue | 84 | 90 | 171 | 180 |
Gross margin | 1 | 14 | 6 | 21 |
Impairment loss | (72) | 0 | (72) | 0 |
Restructuring and separation costs | (43) | $ 0 | (43) | $ 0 |
Total Assets | 1,611 |  | 1,611 |  | 1,285
Goodwill, and Intangible Assets, Net | $ 101 |  | $ 101 |  | $ 175

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(12)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(11)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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