0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CMS Energy Corporation Consolidated Statements of Income (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CMS Energy Corporation Consolidated Statements of Income (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CMS Energy Corporation Consolidated Statements of Comprehensive Income (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CMS Energy Corporation Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CMS Energy Corporation Consolidated Statements of Cash Flows (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CMS Energy Corporation Consolidated Balance Sheets (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - CMS Energy Corporation Consolidated Balance Sheets (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - CMS Energy Corporation Consolidated Statements of Changes in Equity (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952158 - Statement - Consumers Energy Company Consolidated Statements of Income (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952159 - Statement - Consumers Energy Company Consolidated Statements of Comprehensive Income (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952160 - Statement - Consumers Energy Company Consolidated Statements of Cash Flows (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952161 - Statement - Consumers Energy Company Consolidated Balance Sheets (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952162 - Statement - Consumers Energy Company Consolidated Balance Sheets (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952163 - Statement - Consumers Energy Company Consolidated Statements of Changes in Equity (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - New Accounting Standards link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Regulatory Matters link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Contingencies and Commitments link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Financings and Capitalization link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Financial Instruments link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Retirement Benefits link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Earnings Per Share—CMS Energy link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - Revenue link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - Reportable Segments link:presentationLink link:calculationLink link:definitionLink 9952175 - Disclosure - Variable Interest Entities link:presentationLink link:calculationLink link:definitionLink 9952176 - Disclosure - Exit Activities and Asset Sales link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - New Accounting Standards (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Contingencies and Commitments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Financings and Capitalization (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Financial Instruments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Retirement Benefits (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Earnings Per Share—CMS Energy (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Revenue (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Reportable Segments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Variable Interest Entities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Exit Activities and Asset Sales (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Regulatory Matters (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Contingencies and Commitments (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Contingencies and Commitments (Schedule of Remediation and Other Response Activity Costs by Year) (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Contingencies and Commitments (Schedule of Guarantees) (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Financings and Capitalization (Schedule of Major Long-Term Debt Issuances and Retirements) (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Financings and Capitalization (Schedule of Revolving Credit Facilities) (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Financings and Capitalization (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Fair Value Measurements (Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Fair Value Measurements - (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Financial Instruments (Schedule of Carrying Amounts and Fair Values of Financial Instruments) (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Financial Instruments (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Retirement Benefits (Schedule of Net Benefit Costs) (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Retirement Benefits (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Income Taxes (Schedule of Effective Income Rate Reconciliation) (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Income Taxes (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Earnings Per Share—CMS Energy (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Revenue (Schedule of Disaggregation of Revenue) (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Revenue (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Reportable Segments (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Reportable Segments (Schedule of Financial Information by Reportable Segments, CMS Energy, including Consumers) (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Reportable Segments (Schedule of Financial Information by Reportable Segments, Consumers) (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Variable Interest Entities (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Variable Interest Entities (Schedule of VIE Information) (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Variable Interest Entities (Schedule of Variable Interest Entities) (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Exit Activities and Asset Sales (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Exit Activities and Asset Sales (Schedule of Retention Benefit Liability Roll Forward) (Details) link:presentationLink link:calculationLink link:definitionLink