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Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified | 9 Months Ended
--- | ---
Sep. 30, 2013 | Sep. 30, 2012
Cash Flows from Operating Activities |  |
Net income | $ 352 | $ 317
Adjustments to reconcile net income to net cash provided by operating activities |  |
Depreciation and amortization | 463 | 440
Deferred income taxes and investment tax credit | 213 | 193
Postretirement benefits expense | 120 | 141
Other non-cash operating activities | 59 | 51
Postretirement benefits contributions | (109) | (54)
Proceeds from government grant | 69 |
Cash provided by (used in) changes in assets and liabilities |  |
Decrease (increase) in accounts receivable, notes receivable, and accrued revenue | 134 | 99
Decrease (increase) in inventories | (6) | (83)
Decrease in deferred property taxes | 140 | 140
Increase (decrease) in accounts payable | (3) | (16)
Increase (decrease) in accrued expenses | (230) | (251)
Other current and non-current assets and liabilities | (84) | (43)
Net cash provided by operating activities | 1,118 | 934
Cash Flows from Investing Activities |  |
Capital expenditures (excludes assets placed under capital lease) | (900) | (861)
Cost to retire property | (38) | (32)
Other investing activities | (66) | (45)
Net cash used in investing activities | (1,004) | (938)
Cash Flows from Financing Activities |  |
Proceeds from issuance of long-term debt | 1,025 | 1,300
Proceeds from (retirements of) EnerBank notes, net | 48 | 25
Issuance of common stock | 32 | 27
Retirement of long-term debt | (705) | (1,166)
Payment of common stock dividends | (203) | (188)
Redemption of preferred stock | (7) |
Increase (decrease) in notes payable | (110) |
Payment of capital lease obligations and other financing costs | (27) | (27)
Net cash provided by (used in) financing activities | 53 | (29)
Net Increase (Decrease) in Cash and Cash Equivalents | 167 | (33)
Cash and Cash Equivalents, Beginning of Period | 93 | 161
Cash and Cash Equivalents, End of Period | 260 | 128
Consumers Energy Company [Member] |  |
Cash Flows from Operating Activities |  |
Net income | 415 | 361
Adjustments to reconcile net income to net cash provided by operating activities |  |
Depreciation and amortization | 459 | 436
Deferred income taxes and investment tax credit | 141 | 92
Postretirement benefits expense | 117 | 138
Other non-cash operating activities | 52 | 46
Postretirement benefits contributions | (106) | (51)
Proceeds from government grant | 69 |
Cash provided by (used in) changes in assets and liabilities |  |
Decrease (increase) in accounts receivable, notes receivable, and accrued revenue | 135 | 98
Decrease (increase) in inventories | (5) | (81)
Decrease in deferred property taxes | 140 | 140
Increase (decrease) in accounts payable | 7 | (4)
Increase (decrease) in accrued expenses | (205) | (143)
Other current and non-current assets and liabilities | (85) | (7)
Net cash provided by operating activities | 1,134 | 1,025
Cash Flows from Investing Activities |  |
Capital expenditures (excludes assets placed under capital lease) | (895) | (857)
Cost to retire property | (38) | (32)
Other investing activities | (12) | (11)
Net cash used in investing activities | (945) | (900)
Cash Flows from Financing Activities |  |
Proceeds from issuance of long-term debt | 750 | 725
Retirement of long-term debt | (455) | (703)
Payment of common stock dividends | (302) | (304)
Stockholder contribution | 150 | 150
Redemption of preferred stock | (7) |
Increase (decrease) in notes payable | (110) |
Payment of capital lease obligations and other financing costs | (21) | (21)
Net cash provided by (used in) financing activities | 5 | (153)
Net Increase (Decrease) in Cash and Cash Equivalents | 194 | (28)
Cash and Cash Equivalents, Beginning of Period | 5 | 85
Cash and Cash Equivalents, End of Period | $ 199 | $ 57

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- Definition The net cash inflow or outflow from other financing activities. This element is used when there is not a more specific and appropriate element in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3095-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3098-108585 + Details
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- Definition Amount of cash inflow (outflow) from long-term debt supported by a written promise to pay an obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=31814832&loc=SL4591552-111686 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=31814832&loc=SL4591551-111686 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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