Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2012

Schedule of Cost/Carrying Amounts and Fair Values of Long-Term Financial Instruments


In Millions
	June 30, 2012										December 31, 2011
	Cost or										Cost or
	Carrying		Fair Value								Carrying
	Amount		Total		Level 1		Level 2		Level 3		Amount		Fair Value
CMS Energy, including Consumers
Securities held to maturity	$	8	$	9	$	-	$	9	$	-	$	7	$	7
Securities available for sale		125		127		127		-		-		113		113
Notes receivable ¹		486		513		-		-		513		480		504
Long-term debt ²		6,852		7,812		-		7,812		-		7,073		8,025

Consumers
Securities available for sale	$	90	$	116	$	116	$	-	$	-	$	81	$	109
Long-term debt ³		4,007		4,625		-		4,625		-		4,326		4,882

Includes current portion of notes receivable of $26 million at June 30, 2012 and $19 million at December 31, 2011.

Includes current portion of long-term debt of $631 million at June 30, 2012 and $1,033 million at December 31, 2011.

Includes current portion of long-term debt of $40 million at June 30, 2012 and $339 million at December 31, 2011.

Schedule of Investment Securities


In Millions
	June 30, 2012								December 31, 2011
	Cost		Unrealized Gains		Unrealized Losses		Fair Value		Cost		Unrealized Gains		Unrealized Losses		Fair Value
CMS Energy, including Consumers
Available for sale
SERP
Mutual funds		$ 125		$ 2		$ -		$ 127		$ 113		$ -		$ -		$ 113
Held to maturity
Debt securities		8		1		-		9		7		-		-		7

Consumers
Available for sale
SERP
Mutual funds		$ 84		$ 2		$ -		$ 86		$ 74		$ -		$ -		$ 74
CMS Energy common stock		6		24		-		30		7		28		-		35

Consumers Energy Company [Member]

Schedule of Cost/Carrying Amounts and Fair Values of Long-Term Financial Instruments


In Millions
	June 30, 2012										December 31, 2011
	Cost or										Cost or
	Carrying		Fair Value								Carrying
	Amount		Total		Level 1		Level 2		Level 3		Amount		Fair Value
CMS Energy, including Consumers
Securities held to maturity	$	8	$	9	$	-	$	9	$	-	$	7	$	7
Securities available for sale		125		127		127		-		-		113		113
Notes receivable ¹		486		513		-		-		513		480		504
Long-term debt ²		6,852		7,812		-		7,812		-		7,073		8,025

Consumers
Securities available for sale	$	90	$	116	$	116	$	-	$	-	$	81	$	109
Long-term debt ³		4,007		4,625		-		4,625		-		4,326		4,882

Includes current portion of notes receivable of $26 million at June 30, 2012 and $19 million at December 31, 2011.

Includes current portion of long-term debt of $631 million at June 30, 2012 and $1,033 million at December 31, 2011.

Includes current portion of long-term debt of $40 million at June 30, 2012 and $339 million at December 31, 2011.

Schedule of Investment Securities


In Millions
	June 30, 2012								December 31, 2011
	Cost		Unrealized Gains		Unrealized Losses		Fair Value		Cost		Unrealized Gains		Unrealized Losses		Fair Value
CMS Energy, including Consumers
Available for sale
SERP
Mutual funds		$ 125		$ 2		$ -		$ 127		$ 113		$ -		$ -		$ 113
Held to maturity
Debt securities		8		1		-		9		7		-		-		7

Consumers
Available for sale
SERP
Mutual funds		$ 84		$ 2		$ -		$ 86		$ 74		$ -		$ -		$ 74
CMS Energy common stock		6		24		-		30		7		28		-		35

- Definition

Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, assets, and liabilities. Such certain disclosures about the financial instruments, assets, and liabilities include: (1) the fair value of the required items together with their carrying amounts (as appropriate) and (2) the methodology and assumptions used in developing such estimates of fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 14

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 159

-Paragraph 18

-Subparagraph c(2), d, e, f

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 15

-Subparagraph b-d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13467-108611

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 159

-Paragraph 19

-Subparagraph a, b, c(1), d(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6447952&loc=d3e13220-108610

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph a, c(1), c(2), c(3), d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13476-108611

Reference 12: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 30

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612

+ Details

- Definition

Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets.

+ References+ Details