Summary of Significant Accounting Policies (Narrative) (Details)	12 Months Ended
	Jan. 28, 2023 USD ($) state segment number_of_store shares	Jan. 29, 2022 USD ($) shares	Jan. 30, 2021 USD ($) shares
Summary Of Significant Accounting Policies [Line Items]
Number of reportable segments | segment	1
Restricted investments	$ 0	$ 0	$ 0
Cash and cash equivalents	$ 4,551,876,000	4,922,365,000	4,819,293,000
Packaway inventory, storage period, less than	6 months
Depreciation and amortization expense on property and equipment	$ 394,655,000	360,664,000	364,245,000
Capitalized interest	5,678,000	14,476,000	12,251,000
Asset impairment charges	0	0	0
Book cash overdrafts	110,600,000	99,100,000
Expected recovery of merchandise inventory	11,800,000	10,500,000	10,700,000
Refund due to customers	23,100,000	20,300,000	21,200,000
Advertising costs	$ 66,500,000	$ 65,100,000	$ 42,500,000
Anti-dilutive weighted average shares excluded from EPS calculation (in shares) | shares	11,100	3,500	79,500
Property, Plant and Equipment
Summary Of Significant Accounting Policies [Line Items]
Property and equipment purchased but not yet paid	$ 71,000,000	$ 47,300,000	$ 56,200,000
Minimum | Equipment
Summary Of Significant Accounting Policies [Line Items]
Property and equipment estimated useful life, straight-line method	3 years
Minimum | Land Improvements and Buildings
Summary Of Significant Accounting Policies [Line Items]
Property and equipment estimated useful life, straight-line method	20 years
Minimum | Computer Software
Summary Of Significant Accounting Policies [Line Items]
Property and equipment estimated useful life, straight-line method	3 years
Maximum | Equipment
Summary Of Significant Accounting Policies [Line Items]
Property and equipment estimated useful life, straight-line method	12 years
Maximum | Land Improvements and Buildings
Summary Of Significant Accounting Policies [Line Items]
Property and equipment estimated useful life, straight-line method	40 years
Maximum | Computer Software
Summary Of Significant Accounting Policies [Line Items]
Property and equipment estimated useful life, straight-line method	7 years
Ross Dress for Less
Summary Of Significant Accounting Policies [Line Items]
Number of stores | number_of_store	1,693
Number of states company operates in | state	40
dd's Discounts
Summary Of Significant Accounting Policies [Line Items]
Number of stores | number_of_store	322
Number of states company operates in | state	21