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Retirement Benefits | 9 Months Ended
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Sep. 30, 2014
Retirement Benefits | 8:RETIREMENT BENEFITS CMS Energy and Consumers provide pension, OPEB, and other retirement benefits to employees under a number of different plans. Following amendments to the OPEB Plan in July 2013, Consumers’ OPEB costs decreased substantially and, as a result, the OPEB Plan was fully funded at December 31, 2013. In May 2014, Consumers filed an application with the MPSC requesting approval to suspend contributions to Consumers’ OPEB Plan during 2014 and 2015 if the OPEB Plan continues to be fully funded. Consumers’ electric and gas rates still reflect the higher OPEB costs, and previous MPSC orders required Consumers to contribute to the OPEB Plan the associated amount collected in rates annually. In September 2014, the MPSC approved a settlement agreement addressing Consumers’ OPEB Plan funding application. Under the settlement agreement, Consumers will contribute $25 million to the plan in 2014 and $29 million in February 2015. Consumers will then suspend further contributions until the MPSC determines funding requirements in future general rate cases. Presented in the following table are the costs (credits) and other changes in plan assets and benefit obligations incurred in CMS Energy’s and Consumers’ retirement benefits plans:
In Millions
| Pension |  | OPEB |
| Three Months Ended |  | Nine Months Ended |  | Three Months Ended |  | Nine Months Ended |
September 30 | 2014 | 2013 | 2014 | 2013 |  | 2014 | 2013 | 2014 | 2013 |
CMS Energy, including Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net periodic cost (credit) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 10 |  | $ | 13 |  | $ | 30 |  | $ | 40 |  |  | $ | 5 |  | $ | 5 |  | $ | 15 |  | $ | 23 |
Interest expense |  |  | 24 |  |  | 23 |  |  | 74 |  |  | 70 |  |  |  | 14 |  |  | 14 |  |  | 42 |  |  | 52 |
Expected return on plan assets |  |  | (33) |  |  | (32) |  |  | (101) |  |  | (96) |  |  |  | (22) |  |  | (20) |  |  | (66) |  |  | (58) |
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  |  | 14 |  |  | 24 |  |  | 43 |  |  | 72 |  |  |  | 1 |  |  | 3 |  |  | 2 |  |  | 24 |
Prior service cost (credit) |  |  | - |  |  | 1 |  |  | 1 |  |  | 3 |  |  |  | (10) |  |  | (10) |  |  | (31) |  |  | (20) |
Net periodic cost (credit) |  | $ | 15 |  | $ | 29 |  | $ | 47 |  | $ | 89 |  |  | $ | (12) |  | $ | (8) |  | $ | (38) |  | $ | 21 |
Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net periodic cost (credit) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 10 |  | $ | 13 |  | $ | 30 |  | $ | 39 |  |  | $ | 5 |  | $ | 5 |  | $ | 15 |  | $ | 23 |
Interest expense |  |  | 24 |  |  | 23 |  |  | 72 |  |  | 69 |  |  |  | 13 |  |  | 14 |  |  | 40 |  |  | 50 |
Expected return on plan assets |  |  | (33) |  |  | (31) |  |  | (99) |  |  | (94) |  |  |  | (20) |  |  | (19) |  |  | (62) |  |  | (54) |
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  |  | 14 |  |  | 23 |  |  | 42 |  |  | 70 |  |  |  | - |  |  | 3 |  |  | 2 |  |  | 24 |
Prior service cost (credit) |  |  | - |  |  | 1 |  |  | 1 |  |  | 3 |  |  |  | (10) |  |  | (10) |  |  | (30) |  |  | (20) |
Net periodic cost (credit) |  | $ | 15 |  | $ | 29 |  | $ | 46 |  | $ | 87 |  |  | $ | (12) |  | $ | (7) |  | $ | (35) |  | $ | 23 |
Consumers Energy Company [Member] |
Retirement Benefits | 8:RETIREMENT BENEFITS CMS Energy and Consumers provide pension, OPEB, and other retirement benefits to employees under a number of different plans. Following amendments to the OPEB Plan in July 2013, Consumers’ OPEB costs decreased substantially and, as a result, the OPEB Plan was fully funded at December 31, 2013. In May 2014, Consumers filed an application with the MPSC requesting approval to suspend contributions to Consumers’ OPEB Plan during 2014 and 2015 if the OPEB Plan continues to be fully funded. Consumers’ electric and gas rates still reflect the higher OPEB costs, and previous MPSC orders required Consumers to contribute to the OPEB Plan the associated amount collected in rates annually. In September 2014, the MPSC approved a settlement agreement addressing Consumers’ OPEB Plan funding application. Under the settlement agreement, Consumers will contribute $25 million to the plan in 2014 and $29 million in February 2015. Consumers will then suspend further contributions until the MPSC determines funding requirements in future general rate cases. Presented in the following table are the costs (credits) and other changes in plan assets and benefit obligations incurred in CMS Energy’s and Consumers’ retirement benefits plans:
In Millions
| Pension |  | OPEB |
| Three Months Ended |  | Nine Months Ended |  | Three Months Ended |  | Nine Months Ended |
September 30 | 2014 | 2013 | 2014 | 2013 |  | 2014 | 2013 | 2014 | 2013 |
CMS Energy, including Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net periodic cost (credit) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 10 |  | $ | 13 |  | $ | 30 |  | $ | 40 |  |  | $ | 5 |  | $ | 5 |  | $ | 15 |  | $ | 23 |
Interest expense |  |  | 24 |  |  | 23 |  |  | 74 |  |  | 70 |  |  |  | 14 |  |  | 14 |  |  | 42 |  |  | 52 |
Expected return on plan assets |  |  | (33) |  |  | (32) |  |  | (101) |  |  | (96) |  |  |  | (22) |  |  | (20) |  |  | (66) |  |  | (58) |
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  |  | 14 |  |  | 24 |  |  | 43 |  |  | 72 |  |  |  | 1 |  |  | 3 |  |  | 2 |  |  | 24 |
Prior service cost (credit) |  |  | - |  |  | 1 |  |  | 1 |  |  | 3 |  |  |  | (10) |  |  | (10) |  |  | (31) |  |  | (20) |
Net periodic cost (credit) |  | $ | 15 |  | $ | 29 |  | $ | 47 |  | $ | 89 |  |  | $ | (12) |  | $ | (8) |  | $ | (38) |  | $ | 21 |
Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net periodic cost (credit) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 10 |  | $ | 13 |  | $ | 30 |  | $ | 39 |  |  | $ | 5 |  | $ | 5 |  | $ | 15 |  | $ | 23 |
Interest expense |  |  | 24 |  |  | 23 |  |  | 72 |  |  | 69 |  |  |  | 13 |  |  | 14 |  |  | 40 |  |  | 50 |
Expected return on plan assets |  |  | (33) |  |  | (31) |  |  | (99) |  |  | (94) |  |  |  | (20) |  |  | (19) |  |  | (62) |  |  | (54) |
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  |  | 14 |  |  | 23 |  |  | 42 |  |  | 70 |  |  |  | - |  |  | 3 |  |  | 2 |  |  | 24 |
Prior service cost (credit) |  |  | - |  |  | 1 |  |  | 1 |  |  | 3 |  |  |  | (10) |  |  | (10) |  |  | (30) |  |  | (20) |
Net periodic cost (credit) |  | $ | 15 |  | $ | 29 |  | $ | 46 |  | $ | 87 |  |  | $ | (12) |  | $ | (7) |  | $ | (35) |  | $ | 23 |

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e2410-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=35742057&loc=SL14450702-114947 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414199&loc=d3e39622-114963 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39675-114964 + Details
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