CMS Energy Corporation Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Statement of Comprehensive Income [Abstract]
Net Income	$ 193	$ 182	$ 488	$ 445
Retirement Benefits Liability
Amortization of net actuarial loss	0	0	0	1
Other Comprehensive Income	0	0	0	1
Comprehensive Income	193	182	488	446
Comprehensive Loss Attributable to Noncontrolling Interests	(8)	(16)	(17)	(40)
Comprehensive Income	$ 201	$ 198	$ 505	$ 486

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.

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