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Supplemental Condensed Consolidating Financial Information (Tables) | 9 Months Ended
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Sep. 30, 2018
Condensed Financial Information [Abstract] |
Condensed Consolidating Statements of Income | CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS
| Three Months Ended September 30, 2018
| Parent Guarantor |  | Other Guarantors |  | Non-Guarantors |  | Eliminations |  | Consolidated
| (In millions)
Revenue: |  |  |  |  |  |  |  |  |
Total revenue | $ | 273 |  |  | $ | — |  |  | $ | 4,695 |  |  | $ | (271 | ) |  | $ | 4,697 |
Expenses: |  |  |  |  |  |  |  |  |
Medical care costs | (11 | ) |  | — |  |  | 3,801 |  |  | — |  |  | 3,790 |
Cost of service revenue | — |  |  | — |  |  | 111 |  |  | — |  |  | 111 |
General and administrative expenses | 243 |  |  | 1 |  |  | 338 |  |  | (271 | ) |  | 311 |
Premium tax expenses | — |  |  | — |  |  | 110 |  |  | — |  |  | 110 |
Health insurer fees | — |  |  | — |  |  | 87 |  |  | — |  |  | 87 |
Depreciation and amortization | 17 |  |  | — |  |  | 8 |  |  | — |  |  | 25 |
Restructuring and separation costs | 3 |  |  | — |  |  | 2 |  |  | — |  |  | 5 |
Total operating expenses | 252 |  |  | 1 |  |  | 4,457 |  |  | (271 | ) |  | 4,439 |
Gain on sale of subsidiary | 37 |  |  | — |  |  | — |  |  | — |  |  | 37 |
Operating income (loss) | 58 |  |  | (1 | ) |  | 238 |  |  | — |  |  | 295 |
Interest expense | 26 |  |  | — |  |  | — |  |  | — |  |  | 26 |
Other expenses, net | 10 |  |  | — |  |  | — |  |  | — |  |  | 10 |
Income (loss) before income taxes | 22 |  |  | (1 | ) |  | 238 |  |  | — |  |  | 259 |
Income tax (benefit) expense | (6 | ) |  | — |  |  | 68 |  |  | — |  |  | 62 |
Net income (loss) before equity in net earnings (losses) of subsidiaries | 28 |  |  | (1 | ) |  | 170 |  |  | — |  |  | 197 |
Equity in net earnings (losses) of subsidiaries | 169 |  |  | (2 | ) |  | — |  |  | (167 | ) |  | — |
Net income (loss) | $ | 197 |  |  | $ | (3 | ) |  | $ | 170 |  |  | $ | (167 | ) |  | $ | 197 |
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS
| Nine Months Ended September 30, 2018
| Parent Guarantor |  | Other Guarantors |  | Non-Guarantors |  | Eliminations |  | Consolidated
| (In millions)
Revenue: |  |  |  |  |  |  |  |  |
Total revenue | $ | 867 |  |  | $ | 2 |  |  | $ | 14,220 |  |  | $ | (863 | ) |  | $ | 14,226 |
Expenses: |  |  |  |  |  |  |  |  |
Medical care costs | (4 | ) |  | — |  |  | 11,366 |  |  | — |  |  | 11,362 |
Cost of service revenue | — |  |  | — |  |  | 349 |  |  | — |  |  | 349 |
General and administrative expenses | 762 |  |  | 3 |  |  | 1,096 |  |  | (863 | ) |  | 998 |
Premium tax expenses | — |  |  | — |  |  | 320 |  |  | — |  |  | 320 |
Health insurer fees | — |  |  | — |  |  | 261 |  |  | — |  |  | 261 |
Depreciation and amortization | 53 |  |  | — |  |  | 23 |  |  | — |  |  | 76 |
Restructuring and separation costs | 28 |  |  | — |  |  | 10 |  |  | — |  |  | 38 |
Total operating expenses | 839 |  |  | 3 |  |  | 13,425 |  |  | (863 | ) |  | 13,404 |
Gain on sale of subsidiary | 37 |  |  | — |  |  | — |  |  | — |  |  | 37 |
Operating income (loss) | 65 |  |  | (1 | ) |  | 795 |  |  | — |  |  | 859 |
Interest expense | 90 |  |  | — |  |  | 1 |  |  | — |  |  | 91 |
Other expenses, net | 25 |  |  | — |  |  | — |  |  | — |  |  | 25 |
(Loss) income before income taxes | (50 | ) |  | (1 | ) |  | 794 |  |  | — |  |  | 743 |
Income tax expense | 4 |  |  | — |  |  | 233 |  |  | — |  |  | 237 |
Net (loss) income before equity in net earnings (losses) of subsidiaries | (54 | ) |  | (1 | ) |  | 561 |  |  | — |  |  | 506 |
Equity in net earnings (losses) of subsidiaries | 560 |  |  | (6 | ) |  | — |  |  | (554 | ) |  | — |
Net income (loss) | $ | 506 |  |  | $ | (7 | ) |  | $ | 561 |  |  | $ | (554 | ) |  | $ | 506 |
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS
| Nine Months Ended September 30, 2017
| Parent Guarantor |  | Other Guarantors |  | Non-Guarantors |  | Eliminations |  | Consolidated
| (In millions)
Revenue: |  |  |  |  |  |  |  |  |
Total revenue | $ | 1,010 |  |  | $ | 1 |  |  | $ | 14,937 |  |  | $ | (1,014 | ) |  | $ | 14,934 |
Expenses: |  |  |  |  |  |  |  |  |
Medical care costs | 10 |  |  | — |  |  | 12,812 |  |  | — |  |  | 12,822 |
Cost of service revenue | — |  |  | — |  |  | 369 |  |  | — |  |  | 369 |
General and administrative expenses | 799 |  |  | 2 |  |  | 1,440 |  |  | (1,014 | ) |  | 1,227 |
Premium tax expenses | — |  |  | — |  |  | 331 |  |  | — |  |  | 331 |
Depreciation and amortization | 75 |  |  | — |  |  | 34 |  |  | — |  |  | 109 |
Restructuring and separation costs | 120 |  |  | — |  |  | 41 |  |  | — |  |  | 161 |
Impairment losses | — |  |  | — |  |  | 201 |  |  | — |  |  | 201 |
Total operating expenses | 1,004 |  |  | 2 |  |  | 15,228 |  |  | (1,014 | ) |  | 15,220 |
Operating income (loss) | 6 |  |  | (1 | ) |  | (291 | ) |  | — |  |  | (286 | )
Interest expense | 85 |  |  | — |  |  | — |  |  | — |  |  | 85 |
Other income, net | (75 | ) |  | — |  |  | — |  |  | — |  |  | (75 | )
Loss before income taxes | (4 | ) |  | (1 | ) |  | (291 | ) |  | — |  |  | (296 | )
Income tax expense (benefit) | 26 |  |  | (1 | ) |  | (71 | ) |  | — |  |  | (46 | )
Net loss before equity in net (losses) earnings of subsidiaries | (30 | ) |  | — |  |  | (220 | ) |  | — |  |  | (250 | )
Equity in net (losses) earnings of subsidiaries | (220 | ) |  | (152 | ) |  | 8 |  |  | 364 |  |  | — |
Net loss | $ | (250 | ) |  | $ | (152 | ) |  | $ | (212 | ) |  | $ | 364 |  |  | $ | (250 | )
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS
| Three Months Ended September 30, 2017
| Parent Guarantor |  | Other Guarantors |  | Non-Guarantors |  | Eliminations |  | Consolidated
| (In millions)
Revenue: |  |  |  |  |  |  |  |  |
Total revenue | $ | 380 |  |  | $ | (1 | ) |  | $ | 5,031 |  |  | $ | (379 | ) |  | $ | 5,031 |
Expenses: |  |  |  |  |  |  |  |  |
Medical care costs | 3 |  |  | — |  |  | 4,217 |  |  | — |  |  | 4,220 |
Cost of service revenue | — |  |  | — |  |  | 123 |  |  | — |  |  | 123 |
General and administrative expenses | 244 |  |  | — |  |  | 518 |  |  | (379 | ) |  | 383 |
Premium tax expenses | — |  |  | — |  |  | 106 |  |  | — |  |  | 106 |
Depreciation and amortization | 23 |  |  | — |  |  | 10 |  |  | — |  |  | 33 |
Restructuring and separation costs | 77 |  |  | — |  |  | 41 |  |  | — |  |  | 118 |
Impairment losses | — |  |  | — |  |  | 129 |  |  | — |  |  | 129 |
Total operating expenses | 347 |  |  | — |  |  | 5,144 |  |  | (379 | ) |  | 5,112 |
Operating income (loss) | 33 |  |  | (1 | ) |  | (113 | ) |  | — |  |  | (81 | )
Interest expense | 32 |  |  | — |  |  | — |  |  | — |  |  | 32 |
Income (loss) before income taxes | 1 |  |  | (1 | ) |  | (113 | ) |  | — |  |  | (113 | )
Income tax expense (benefit) | 9 |  |  | (1 | ) |  | (24 | ) |  | — |  |  | (16 | )
Net loss before equity in net (losses) earnings of subsidiaries | (8 | ) |  | — |  |  | (89 | ) |  | — |  |  | (97 | )
Equity in net (losses) earnings of subsidiaries | (89 | ) |  | (86 | ) |  | 8 |  |  | 167 |  |  | — |
Net loss | $ | (97 | ) |  | $ | (86 | ) |  | $ | (81 | ) |  | $ | 167 |  |  | $ | (97 | )
Condensed Consolidating Statements of Comprehensive Income | CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
| Nine Months Ended September 30, 2018
| Parent Guarantor |  | Other Guarantors |  | Non-Guarantors |  | Eliminations |  | Consolidated
| (In millions)
Net income (loss) | $ | 506 |  |  | $ | (7 | ) |  | $ | 561 |  |  | $ | (554 | ) |  | $ | 506 |
Other comprehensive loss, net of tax | (4 | ) |  | — |  |  | (4 | ) |  | 4 |  |  | (4 | )
Comprehensive income (loss) | $ | 502 |  |  | $ | (7 | ) |  | $ | 557 |  |  | $ | (550 | ) |  | $ | 502 |
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE LOSS
| Nine Months Ended September 30, 2017
| Parent Guarantor |  | Other Guarantors |  | Non-Guarantors |  | Eliminations |  | Consolidated
| (In millions)
Net loss | $ | (250 | ) |  | $ | (152 | ) |  | $ | (212 | ) |  | $ | 364 |  |  | $ | (250 | )
Other comprehensive income, net of tax | 1 |  |  | — |  |  | 1 |  |  | (1 | ) |  | 1 |
Comprehensive loss | $ | (249 | ) |  | $ | (152 | ) |  | $ | (211 | ) |  | $ | 363 |  |  | $ | (249 | )
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
| Three Months Ended September 30, 2018
| Parent Guarantor |  | Other Guarantors |  | Non-Guarantors |  | Eliminations |  | Consolidated
| (In millions)
Net income (loss) | $ | 197 |  |  | $ | (3 | ) |  | $ | 170 |  |  | $ | (167 | ) |  | $ | 197 |
Other comprehensive gain, net of tax | 1 |  |  | — |  |  | 1 |  |  | (1 | ) |  | 1 |
Comprehensive income (loss) | $ | 198 |  |  | $ | (3 | ) |  | $ | 171 |  |  | $ | (168 | ) |  | $ | 198 |
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE LOSS
| Three Months Ended September 30, 2017
| Parent Guarantor |  | Other Guarantors |  | Non-Guarantors |  | Eliminations |  | Consolidated
| (In millions)
Net loss | $ | (97 | ) |  | $ | (86 | ) |  | $ | (81 | ) |  | $ | 167 |  |  | $ | (97 | )
Other comprehensive income, net of tax | — |  |  | — |  |  | — |  |  | — |  |  | — |
Comprehensive loss | $ | (97 | ) |  | $ | (86 | ) |  | $ | (81 | ) |  | $ | 167 |  |  | $ | (97 | )
Condensed Consolidating Balance Sheets | CONDENSED CONSOLIDATING BALANCE SHEETS
| September 30, 2018
| Parent Guarantor |  | Other Guarantors |  | Non-Guarantors |  | Eliminations |  | Consolidated
| (In millions)
ASSETS
Current assets: |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | 399 |  |  | $ | 2 |  |  | $ | 2,413 |  |  | $ | — |  |  | $ | 2,814 |
Investments | 106 |  |  | — |  |  | 1,706 |  |  | — |  |  | 1,812 |
Receivables | 2 |  |  | — |  |  | 1,344 |  |  | — |  |  | 1,346 |
Due from (to) affiliates | 63 |  |  | (4 | ) |  | (59 | ) |  | — |  |  | — |
Prepaid expenses and other current assets | 293 |  |  | — |  |  | 193 |  |  | — |  |  | 486 |
Derivative asset | 843 |  |  | — |  |  | — |  |  | — |  |  | 843 |
Total current assets | 1,706 |  |  | (2 | ) |  | 5,597 |  |  | — |  |  | 7,301 |
Property, equipment, and capitalized software, net | 187 |  |  | — |  |  | 77 |  |  | — |  |  | 264 |
Goodwill and intangible assets, net | 14 |  |  | — |  |  | 181 |  |  | — |  |  | 195 |
Restricted investments | — |  |  | — |  |  | 118 |  |  | — |  |  | 118 |
Investment in subsidiaries, net | 2,578 |  |  | 74 |  |  | — |  |  | (2,652 | ) |  | — |
Deferred income taxes | 48 |  |  | — |  |  | 95 |  |  | — |  |  | 143 |
Other assets | 40 |  |  | — |  |  | 6 |  |  | (16 | ) |  | 30 |
| $ | 4,573 |  |  | $ | 72 |  |  | $ | 6,074 |  |  | $ | (2,668 | ) |  | $ | 8,051 |
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities: |  |  |  |  |  |  |  |  |
Medical claims and benefits payable | $ | 4 |  |  | $ | — |  |  | $ | 2,038 |  |  | $ | — |  |  | $ | 2,042 |
Amounts due government agencies | — |  |  | — |  |  | 1,030 |  |  | — |  |  | 1,030 |
Accounts payable and accrued liabilities | 635 |  |  | — |  |  | 189 |  |  | — |  |  | 824 |
Deferred revenue | — |  |  | — |  |  | 178 |  |  | — |  |  | 178 |
Current portion of long-term debt | 296 |  |  | — |  |  | — |  |  | — |  |  | 296 |
Derivative liability | 843 |  |  | — |  |  | — |  |  | — |  |  | 843 |
Total current liabilities | 1,778 |  |  | — |  |  | 3,435 |  |  | — |  |  | 5,213 |
Long-term debt and lease financing obligations | 1,217 |  |  | — |  |  | 16 |  |  | (16 | ) |  | 1,217 |
Other long-term liabilities | 17 |  |  | — |  |  | 43 |  |  | — |  |  | 60 |
Total liabilities | 3,012 |  |  | — |  |  | 3,494 |  |  | (16 | ) |  | 6,490 |
Total stockholders’ equity | 1,561 |  |  | 72 |  |  | 2,580 |  |  | (2,652 | ) |  | 1,561 |
| $ | 4,573 |  |  | $ | 72 |  |  | $ | 6,074 |  |  | $ | (2,668 | ) |  | $ | 8,051 |
CONDENSED CONSOLIDATING BALANCE SHEETS
| December 31, 2017
| Parent Guarantor |  | Other Guarantors |  | Non-Guarantors |  | Eliminations |  | Consolidated
| (In millions)
ASSETS
Current assets: |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | 504 |  |  | $ | — |  |  | $ | 2,682 |  |  | $ | — |  |  | $ | 3,186 |
Investments | 192 |  |  | — |  |  | 2,332 |  |  | — |  |  | 2,524 |
Restricted investments | 169 |  |  | — |  |  | — |  |  | — |  |  | 169 |
Receivables | 2 |  |  | — |  |  | 869 |  |  | — |  |  | 871 |
Due from (to) affiliates | 148 |  |  | (5 | ) |  | (143 | ) |  | — |  |  | — |
Prepaid expenses and other current assets | 103 |  |  | 16 |  |  | 136 |  |  | (16 | ) |  | 239 |
Derivative asset | 522 |  |  | — |  |  | — |  |  | — |  |  | 522 |
Total current assets | 1,640 |  |  | 11 |  |  | 5,876 |  |  | (16 | ) |  | 7,511 |
Property, equipment, and capitalized software, net | 223 |  |  | — |  |  | 119 |  |  | — |  |  | 342 |
Goodwill and intangible assets, net | 15 |  |  | — |  |  | 240 |  |  | — |  |  | 255 |
Restricted investments | — |  |  | — |  |  | 119 |  |  | — |  |  | 119 |
Investment in subsidiaries, net | 2,306 |  |  | 82 |  |  | — |  |  | (2,388 | ) |  | — |
Deferred income taxes | 17 |  |  | — |  |  | 101 |  |  | (15 | ) |  | 103 |
Other assets | 32 |  |  | — |  |  | 110 |  |  | (1 | ) |  | 141 |
| $ | 4,233 |  |  | $ | 93 |  |  | $ | 6,565 |  |  | $ | (2,420 | ) |  | $ | 8,471 |
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities: |  |  |  |  |  |  |  |  |
Medical claims and benefits payable | $ | 3 |  |  | $ | — |  |  | $ | 2,189 |  |  | $ | — |  |  | $ | 2,192 |
Amounts due government agencies | — |  |  | — |  |  | 1,542 |  |  | — |  |  | 1,542 |
Accounts payable and accrued liabilities | 178 |  |  | 14 |  |  | 174 |  |  | — |  |  | 366 |
Deferred revenue | — |  |  | — |  |  | 282 |  |  | — |  |  | 282 |
Current portion of long-term debt | 653 |  |  | — |  |  | 16 |  |  | (16 | ) |  | 653 |
Derivative liability | 522 |  |  | — |  |  | — |  |  | — |  |  | 522 |
Total current liabilities | 1,356 |  |  | 14 |  |  | 4,203 |  |  | (16 | ) |  | 5,557 |
Long-term debt and lease financing obligations | 1,516 |  |  | — |  |  | — |  |  | — |  |  | 1,516 |
Deferred income taxes | — |  |  | — |  |  | 15 |  |  | (15 | ) |  | — |
Other long-term liabilities | 24 |  |  | 1 |  |  | 37 |  |  | (1 | ) |  | 61 |
Total liabilities | 2,896 |  |  | 15 |  |  | 4,255 |  |  | (32 | ) |  | 7,134 |
Total stockholders’ equity | 1,337 |  |  | 78 |  |  | 2,310 |  |  | (2,388 | ) |  | 1,337 |
| $ | 4,233 |  |  | $ | 93 |  |  | $ | 6,565 |  |  | $ | (2,420 | ) |  | $ | 8,471 |
Condensed Consolidating Statements of Cash Flows | CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS
| Nine Months Ended September 30, 2018
| Parent Guarantor |  | Other Guarantors |  | Non-Guarantors |  | Eliminations |  | Consolidated
| (In millions)
Operating activities: |  |  |  |  |  |  |  |  |
Net cash provided by (used in) operating activities | $ | 451 |  |  | $ | 1 |  |  | $ | (643 | ) |  | $ | — |  |  | $ | (191 | )
Investing activities: |  |  |  |  |  |  |  |  |
Purchases of investments | (136 | ) |  | — |  |  | (1,066 | ) |  | — |  |  | (1,202 | )
Proceeds from sales and maturities of investments | 383 |  |  | — |  |  | 1,687 |  |  | — |  |  | 2,070 |
Purchases of property, equipment and capitalized software | (16 | ) |  | — |  |  | (8 | ) |  | — |  |  | (24 | )
Capital contributions to subsidiaries | (122 | ) |  | — |  |  | 122 |  |  | — |  |  | — |
Dividends from subsidiaries | 268 |  |  | — |  |  | (268 | ) |  | — |  |  | — |
Change in amounts due to/from affiliates | 70 |  |  | 1 |  |  | (71 | ) |  | — |  |  | — |
Other, net | — |  |  | — |  |  | (23 | ) |  | — |  |  | (23 | )
Net cash provided by investing activities | 447 |  |  | 1 |  |  | 373 |  |  | — |  |  | 821 |
Financing activities: |  |  |  |  |  |  |  |  |
Repayment of credit facility | (300 | ) |  | — |  |  | — |  |  | — |  |  | (300 | )
Repayment of principal amount of 1.125% Notes | (236 | ) |  | — |  |  | — |  |  | — |  |  | (236 | )
Cash paid for partial settlement of 1.125% Conversion Option | (477 | ) |  | — |  |  | — |  |  | — |  |  | (477 | )
Cash received for partial termination of 1.125% Call Option | 477 |  |  | — |  |  | — |  |  | — |  |  | 477 |
Cash paid for partial termination of 1.125% Warrants | (419 | ) |  | — |  |  | — |  |  | — |  |  | (419 | )
Repayment of principal amount of 1.625% Notes | (64 | ) |  | — |  |  | — |  |  | — |  |  | (64 | )
Other, net | 7 |  |  | — |  |  | — |  |  | — |  |  | 7 |
Net cash used in financing activities | (1,012 | ) |  | — |  |  | — |  |  | — |  |  | (1,012 | )
Net (decrease) increase in cash, cash equivalents, and restricted cash and cash equivalents | (114 | ) |  | 2 |  |  | (270 | ) |  | — |  |  | (382 | )
Cash, cash equivalents, and restricted cash and cash equivalents at beginning of period | 513 |  |  | — |  |  | 2,777 |  |  | — |  |  | 3,290 |
Cash, cash equivalents, and restricted cash and cash equivalents at end of period | $ | 399 |  |  | $ | 2 |  |  | $ | 2,507 |  |  | $ | — |  |  | $ | 2,908 |
| Nine Months Ended September 30, 2017
| Parent Guarantor |  | Other Guarantors |  | Non-Guarantors |  | Eliminations |  | Consolidated
| (In millions)
Operating activities: |  |  |  |  |  |  |  |  |
Net cash provided by operating activities | $ | 215 |  |  | $ | — |  |  | $ | 742 |  |  | $ | — |  |  | $ | 957 |
Investing activities: |  |  |  |  |  |  |  |  |
Purchases of investments | (331 | ) |  | — |  |  | (1,563 | ) |  | — |  |  | (1,894 | )
Proceeds from sales and maturities of investments | 148 |  |  | — |  |  | 1,388 |  |  | — |  |  | 1,536 |
Purchases of property, equipment and capitalized software | (67 | ) |  | — |  |  | (18 | ) |  | — |  |  | (85 | )
Capital contributions to subsidiaries | (363 | ) |  | 2 |  |  | 361 |  |  | — |  |  | — |
Dividends from subsidiaries | 136 |  |  | — |  |  | (136 | ) |  | — |  |  | — |
Change in amounts due to/from affiliates | (100 | ) |  | — |  |  | 100 |  |  | — |  |  | — |
Other, net | — |  |  | — |  |  | (33 | ) |  | — |  |  | (33 | )
Net cash (used in) provided by investing activities | (577 | ) |  | 2 |  |  | 99 |  |  | — |  |  | (476 | )
Financing activities: |  |  |  |  |  |  |  |  |
Proceeds from senior notes offerings, net of issuance costs | 325 |  |  | — |  |  | — |  |  | — |  |  | 325 |
Proceeds from borrowings under credit facility | 300 |  |  | — |  |  | — |  |  | — |  |  | 300 |
Other, net | 7 |  |  | — |  |  | — |  |  | — |  |  | 7 |
Net cash provided by financing activities | 632 |  |  | — |  |  | — |  |  | — |  |  | 632 |
Net increase in cash, cash equivalents, and restricted cash and cash equivalents | 270 |  |  | 2 |  |  | 841 |  |  | — |  |  | 1,113 |
Cash, cash equivalents, and restricted cash and cash equivalents at beginning of period | 86 |  |  | — |  |  | 2,826 |  |  | — |  |  | 2,912 |
Cash, cash equivalents, and restricted cash and cash equivalents at end of period | $ | 356 |  |  | $ | 2 |  |  | $ | 3,667 |  |  | $ | — |  |  | $ | 4,025 |

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- Definition Condensed Financial Information [Abstract] + References No definition available. + Details
Name: | moh_CondensedFinancialInformationAbstract
Namespace Prefix: | moh_
Data Type: | xbrli:stringItemType
Balance Type: | na
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