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Leases and Palisades Financing - Lessor Leases Narrative (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2019 USD ($)
Sales-type and Direct Financing Leases, Lease Receivable, Fiscal Year Maturity [Abstract] |
Minimum rental payments to be received 2025 and thereafter | $ 10
Unearned income | 5
Lease receivables | 5
Maximum |
Sales-type and Direct Financing Leases, Lease Receivable, Fiscal Year Maturity [Abstract] |
Minimum rental payments to be received 2020 | 1
Minimum annual rental payments to be received in 2021 | 1
Minimum annual rental payments to be received in 2022 | 1
Minimum annual rental payments to be received in 2023 | 1
Minimum rental payments to be received in 2024 | 1
Consumers Energy Company |
Sales-type and Direct Financing Leases, Lease Receivable, Fiscal Year Maturity [Abstract] |
Minimum rental payments to be received 2020 | 1
Minimum annual rental payments to be received in 2021 | 1
Minimum annual rental payments to be received in 2022 | 1
Minimum annual rental payments to be received in 2023 | 1
Minimum rental payments to be received in 2024 | 1
Minimum rental payments to be received 2025 and thereafter | 19
Unearned income | 14
Lease receivables | 10
Power Sales Agreement |
Lessor, Lease, Description [Line Items] |
Leasing income | 174
Variable lease income | $ 119
CMS Energy Subsidiary | Natural Gas Transportation Agreement | Consumers Energy Company |
Lessor, Lease, Description [Line Items] |
Direct financing lease term | 20 years

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- Definition Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=119202524&loc=SL77919372-209981 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=77888421&loc=SL77919311-209978 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 6A -URI http://asc.fasb.org/extlink&oid=118952077&loc=SL77927221-108306 + Details
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- Definition Present value of lease payments not yet received by lessor and amount expected to be derived from underlying asset, following end of lease term guaranteed by lessee or other third party unrelated to lessor, from sales-type and direct financing leases. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=119202524&loc=SL77919391-209981 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=119202524&loc=SL77919379-209981 + Details
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- Definition Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in fifth fiscal year following latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=119202524&loc=SL77919391-209981 + Details
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- Definition Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in third fiscal year following latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=119202524&loc=SL77919391-209981 + Details
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