Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014
Income Statement [Abstract]
Net sales	$ 27,079	$ 28,105	$ 27,931
Cost of sales	(16,496)	(16,863)	(16,725)
Gross margin	10,583	11,242	11,206
Selling, general and administrative expenses	(8,256)	(8,355)	(8,440)
Impairments, store closing and other costs	(288)	(87)	(88)
Operating income (loss)	2,039	2,800	2,678
Interest expense	(363)	(395)	(390)
Premium on early retirement of debt	0	(17)	0
Interest income	2	2	2
Income (loss) before income taxes	1,678	2,390	2,290
Federal, state and local income tax expense	(608)	(864)	(804)
Net income	1,070	1,526	1,486
Net loss attributable to noncontrolling interest	2	0	0
Net income attributable to Macy's, Inc. shareholders	$ 1,072	$ 1,526	$ 1,486
Basic earnings per share attributable to Macy's, Inc. shareholders	$ 3.26	$ 4.30	$ 3.93
Diluted earnings per share attributable to Macy's, Inc. shareholders	$ 3.22	$ 4.22	$ 3.86

The amount of asset impairments, store closings and other costs

No definition available.

Name:	m_Impairmentsstoreclosingandothercosts
Namespace Prefix:	m_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.