Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Jan. 30, 2021	Feb. 01, 2020	Feb. 02, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ (3,944)	$ 564	$ 1,098
Actuarial gain (loss) and prior service cost on post employment and postretirement benefit plans, net of tax effect	107	(107)	(151)
Amortization of net actuarial loss and prior service credit on post employment and postretirement benefit plans, after tax	35	23	23
Settlement charges, net of tax effect	62	44	65
Total other comprehensive income (loss)	204	(40)	(63)
Comprehensive income (loss)	(3,740)	524	1,035
Comprehensive loss attributable to noncontrolling interest	0	0	10
Comprehensive income (loss) attributable to Macy's, Inc. shareholders	$ (3,740)	$ 524	$ 1,045