Annual report pursuant to Section 13 and 15(d)

Quarterly Results (unaudited) (Unaudited Quarterly Results) (Details)

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Quarterly Results (unaudited) (Unaudited Quarterly Results) (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Jan. 28, 2017
Oct. 29, 2016
Jul. 30, 2016
Apr. 30, 2016
Jan. 30, 2016
Oct. 31, 2015
Aug. 01, 2015
May 02, 2015
Jan. 28, 2017
Jan. 30, 2016
Jan. 31, 2015
Quarterly Financial Data [Abstract]                      
Net sales $ 8,515 $ 5,626 $ 5,866 $ 5,771 $ 8,869 $ 5,874 $ 6,104 $ 6,232 $ 25,778 $ 27,079 $ 28,105
Cost of sales (5,251) (3,386) (3,468) (3,516) (5,549) (3,537) (3,610) (3,800) (15,621) (16,496) (16,863)
Gross margin 3,264 2,240 2,398 2,255 3,320 2,337 2,494 2,432 10,157 10,583 11,242
Selling, general and administrative expenses (2,202) (2,071) (2,026) (1,966) (2,207) (1,968) (2,058) (2,023) (8,265) (8,256) (8,355)
Impairments, store closing and other costs (230) 0 (249) 0 (177) (111) 0 0 (479) (288) (87)
Settlement charges (17) (62) (6) (13)         (98) 0 0
Net income attributable to Macy's, Inc. shareholders $ 475 $ 17 $ 11 $ 116 $ 544 $ 118 $ 217 $ 193 $ 619 $ 1,072 $ 1,526
Basic earnings per share attributable to Macy's, Inc. shareholders $ 1.56 $ 0.05 $ 0.03 $ 0.37 $ 1.74 $ 0.36 $ 0.65 $ 0.57 $ 2.01 $ 3.26 $ 4.30
Diluted earnings per share attributable to Macy's, Inc. shareholders $ 1.54 $ 0.05 $ 0.03 $ 0.37 $ 1.73 $ 0.36 $ 0.64 $ 0.56 $ 1.99 $ 3.22 $ 4.22