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Condensed Consolidating Financial Information (Condensed Consolidating Statement of Operations) (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 30, 2016 | Oct. 31, 2015 | Aug. 01, 2015 | May. 02, 2015 | Jan. 31, 2015 | Nov. 01, 2014 | Aug. 02, 2014 | May. 03, 2014 | Jan. 30, 2016 | Jan. 31, 2015 | Feb. 01, 2014
Net sales | $ 8,869 | $ 5,874 | $ 6,104 | $ 6,232 | $ 9,364 | $ 6,195 | $ 6,267 | $ 6,279 | $ 27,079 | $ 28,105 | $ 27,931
Cost of sales | (5,549) | (3,537) | (3,610) | (3,800) | (5,589) | (3,766) | (3,672) | (3,836) | (16,496) | (16,863) | (16,725)
Gross margin | 3,320 | 2,337 | 2,494 | 2,432 | 3,775 | 2,429 | 2,595 | 2,443 | 10,583 | 11,242 | 11,206
Selling, general and administrative expenses | (2,207) | (1,968) | (2,058) | (2,023) | (2,324) | (2,007) | (2,024) | (2,000) | (8,256) | (8,355) | (8,440)
Impairments, store closing and other costs | (177) | (111) | 0 | 0 | (87) | 0 | 0 | 0 | (288) | (87) | (88)
Operating income (loss) |  |  |  |  |  |  |  |  | 2,039 | 2,800 | 2,678
Interest Income (Expense), Net |  |  |  |  |  |  |  |  | (361) | (393) | (388)
Interest (expense) income, net |  |  |  |  |  |  |  |  |  |  |
Intercompany |  |  |  |  |  |  |  |  | 0 | 0 | 0
Premium on early retirement of debt |  |  |  |  |  |  |  |  | 0 | (17) | 0
Equity in earnings of subsidiaries |  |  |  |  |  |  |  |  | 0 | 0 | 0
Income (loss) before income taxes |  |  |  |  |  |  |  |  | 1,678 | 2,390 | 2,290
Federal, state and local income tax benefit (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 | $ 544 | $ 118 | $ 217 | $ 193 | $ 793 | $ 217 | $ 292 | $ 224 | 1,072 | 1,526 | 1,486
Comprehensive income |  |  |  |  |  |  |  |  | 1,099 | 1,119 | 1,752
Comprehensive loss attributable to noncontrolling interest |  |  |  |  |  |  |  |  | 2 | 0 | 0
Comprehensive income attributable to Macy's, Inc. shareholders |  |  |  |  |  |  |  |  | 1,101 | 1,119 | 1,752
Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 0 | 0 | 0
Cost of sales |  |  |  |  |  |  |  |  | 0 | 0 | 0
Gross margin |  |  |  |  |  |  |  |  | 0 | 0 | 0
Selling, general and administrative expenses |  |  |  |  |  |  |  |  | (2) | (3) | (8)
Impairments, store closing and other costs |  |  |  |  |  |  |  |  | 0 | 0 | 0
Operating income (loss) |  |  |  |  |  |  |  |  | (2) | (3) | (8)
Interest Income (Expense), Net |  |  |  |  |  |  |  |  | 1 | 1 | 1
Interest (expense) income, net |  |  |  |  |  |  |  |  |  |  |
Intercompany |  |  |  |  |  |  |  |  | 0 | 0 | (2)
Premium on early retirement of debt |  |  |  |  |  |  |  |  |  | 0 |
Equity in earnings of subsidiaries |  |  |  |  |  |  |  |  | 1,072 | 1,528 | 1,492
Income (loss) before income taxes |  |  |  |  |  |  |  |  | 1,071 | 1,526 | 1,483
Federal, state and local income tax benefit (expense) |  |  |  |  |  |  |  |  | 1 | 0 | 3
Net income |  |  |  |  |  |  |  |  | 1,072 | 1,526 | 1,486
Net loss attributable to noncontrolling interest |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net income attributable to Macy's, Inc. shareholders |  |  |  |  |  |  |  |  | 1,072 | 1,526 | 1,486
Comprehensive income |  |  |  |  |  |  |  |  | 1,101 | 1,119 | 1,752
Comprehensive loss attributable to noncontrolling interest |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income attributable to Macy's, Inc. shareholders |  |  |  |  |  |  |  |  | 1,101 | 1,119 | 1,752
Subsidiary Issuer [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 11,959 | 13,078 | 13,233
Cost of sales |  |  |  |  |  |  |  |  | (7,670) | (8,127) | (8,168)
Gross margin |  |  |  |  |  |  |  |  | 4,289 | 4,951 | 5,065
Selling, general and administrative expenses |  |  |  |  |  |  |  |  | (3,980) | (4,351) | (4,443)
Impairments, store closing and other costs |  |  |  |  |  |  |  |  | (170) | (45) | (37)
Operating income (loss) |  |  |  |  |  |  |  |  | 139 | 555 | 585
Interest Income (Expense), Net |  |  |  |  |  |  |  |  | (361) | (394) | (388)
Interest (expense) income, net |  |  |  |  |  |  |  |  |  |  |
Intercompany |  |  |  |  |  |  |  |  | (230) | (230) | (176)
Premium on early retirement of debt |  |  |  |  |  |  |  |  |  | (17) |
Equity in earnings of subsidiaries |  |  |  |  |  |  |  |  | 421 | 624 | 557
Income (loss) before income taxes |  |  |  |  |  |  |  |  | (31) | 538 | 578
Federal, state and local income tax benefit (expense) |  |  |  |  |  |  |  |  | 120 | 25 | 33
Net income |  |  |  |  |  |  |  |  | 89 | 563 | 611
Net loss attributable to noncontrolling interest |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net income attributable to Macy's, Inc. shareholders |  |  |  |  |  |  |  |  | 89 | 563 | 611
Comprehensive income |  |  |  |  |  |  |  |  | 118 | 156 | 877
Comprehensive loss attributable to noncontrolling interest |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income attributable to Macy's, Inc. shareholders |  |  |  |  |  |  |  |  | 118 | 156 | 877
Non-Guarantor Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 24,037 | 23,522 | 23,417
Cost of sales |  |  |  |  |  |  |  |  | (17,743) | (17,231) | (17,276)
Gross margin |  |  |  |  |  |  |  |  | 6,294 | 6,291 | 6,141
Selling, general and administrative expenses |  |  |  |  |  |  |  |  | (4,274) | (4,001) | (3,989)
Impairments, store closing and other costs |  |  |  |  |  |  |  |  | (118) | (42) | (51)
Operating income (loss) |  |  |  |  |  |  |  |  | 1,902 | 2,248 | 2,101
Interest Income (Expense), Net |  |  |  |  |  |  |  |  | (1) | 0 | (1)
Interest (expense) income, net |  |  |  |  |  |  |  |  |  |  |
Intercompany |  |  |  |  |  |  |  |  | 230 | 230 | 178
Premium on early retirement of debt |  |  |  |  |  |  |  |  |  | 0 |
Equity in earnings of subsidiaries |  |  |  |  |  |  |  |  | 0 | 0 | 0
Income (loss) before income taxes |  |  |  |  |  |  |  |  | 2,131 | 2,478 | 2,278
Federal, state and local income tax benefit (expense) |  |  |  |  |  |  |  |  | (729) | (889) | (840)
Net income |  |  |  |  |  |  |  |  | 1,402 | 1,589 | 1,438
Net loss attributable to noncontrolling interest |  |  |  |  |  |  |  |  | 2 | 0 | 0
Net income attributable to Macy's, Inc. shareholders |  |  |  |  |  |  |  |  | 1,404 | 1,589 | 1,438
Comprehensive income |  |  |  |  |  |  |  |  | 1,415 | 1,338 | 1,434
Comprehensive loss attributable to noncontrolling interest |  |  |  |  |  |  |  |  | 2 | 0 | 0
Comprehensive income attributable to Macy's, Inc. shareholders |  |  |  |  |  |  |  |  | 1,417 | 1,338 | 1,434
Consolidation, Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | (8,917) | (8,495) | (8,719)
Cost of sales |  |  |  |  |  |  |  |  | 8,917 | 8,495 | 8,719
Gross margin |  |  |  |  |  |  |  |  | 0 | 0 | 0
Selling, general and administrative expenses |  |  |  |  |  |  |  |  | 0 | 0 | 0
Impairments, store closing and other costs |  |  |  |  |  |  |  |  | 0 | 0 | 0
Operating income (loss) |  |  |  |  |  |  |  |  | 0 | 0 | 0
Interest Income (Expense), Net |  |  |  |  |  |  |  |  | 0 | 0 | 0
Interest (expense) income, net |  |  |  |  |  |  |  |  |  |  |
Intercompany |  |  |  |  |  |  |  |  | 0 | 0 | 0
Premium on early retirement of debt |  |  |  |  |  |  |  |  |  | 0 |
Equity in earnings of subsidiaries |  |  |  |  |  |  |  |  | (1,493) | (2,152) | (2,049)
Income (loss) before income taxes |  |  |  |  |  |  |  |  | (1,493) | (2,152) | (2,049)
Federal, state and local income tax benefit (expense) |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net income |  |  |  |  |  |  |  |  | (1,493) | (2,152) | (2,049)
Net loss attributable to noncontrolling interest |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net income attributable to Macy's, Inc. shareholders |  |  |  |  |  |  |  |  | (1,493) | (2,152) | (2,049)
Comprehensive income |  |  |  |  |  |  |  |  | (1,535) | (1,494) | (2,311)
Comprehensive loss attributable to noncontrolling interest |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income attributable to Macy's, Inc. shareholders |  |  |  |  |  |  |  |  | $ (1,535) | $ (1,494) | $ (2,311)

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