CMS Energy Corporation Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash Flows from Operating Activities
Net Income	$ 813	$ 1,330	$ 752
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	1,126	1,114	1,043
Deferred income taxes and investment tax credits	89	249	170
Bad debt expense	50	22	30
Postretirement benefits contributions	(12)	(12)	(712)
Gain from sale of EnerBank	(5)	(657)
Other non‑cash operating activities and reconciling adjustments	(93)	(70)	(15)
Net cash provided by (used in) discontinued operations	0	(111)	33
Changes in assets and liabilities
Accounts receivable and accrued revenue	(677)	(103)	(5)
Inventories	(450)	(93)	28
Accounts payable and accrued rate refunds	4	153	56
Other current assets and liabilities	14	13	(68)
Other non‑current assets and liabilities	(4)	(16)	(36)
Net cash provided by operating activities	855	1,819	1,276
Cash Flows from Investing Activities
Capital expenditures (excludes assets placed under finance lease)	(2,374)	(2,076)	(2,311)
Net proceeds from sale of EnerBank	5	898	0
Proceeds from sale of transmission equipment	0	0	58
Net cash provided by (used in) discontinued operations	0	78	(485)
Cost to retire property and other investing activities	(107)	(133)	(129)
Net cash used in investing activities	(2,476)	(1,233)	(2,867)
Cash Flows from Financing Activities
Proceeds from issuance of debt	1,899	335	3,179
Retirement of debt	(106)	(235)	(2,010)
Increase (decrease) in notes payable	20
Increase (decrease) in notes payable		0	(90)
Issuance of common stock	69	26	253
Issuance of preferred stock, net of issuance costs	0	224	0
Payment of dividends on common and preferred stock	(546)	(509)	(467)
Debt prepayment costs	0	0	(59)
Proceeds from the sale of membership interest in VIE to tax equity investor	49	0	417
Contribution from noncontrolling interest	2	1	31
Net cash provided by (used in) discontinued operations	0	(84)	416
Other financing costs	(60)	(53)	(51)
Net cash provided by (used in) financing activities	1,327	(295)	1,619
Net Increase (Decrease) in Cash and Cash Equivalents, Including Restricted Amounts	(294)	291	28
Cash and Cash Equivalents, Including Restricted Amounts, Beginning of Period	476	185	157
Cash and Cash Equivalents, Including Restricted Amounts, End of Period	182	476	185
Cash transactions
Interest paid (net of amounts capitalized)	490	489	549
Income taxes paid (refunds received), net	1	16	(58)
Non‑cash transactions
Capital expenditures not paid	$ 228	$ 196	141
Discontinued Operations | EnerBank
Adjustments to reconcile net income to net cash provided by operating activities
Gain from sale of EnerBank			$ 0