Dollar Tree, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Cover
- Document And Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)
Notes Tables
Notes Details

CONDENSED CONSOLIDATING FINANCIAL INFORMATION (Narrative) (Details)

v3.8.0.1

CONDENSED CONSOLIDATING FINANCIAL INFORMATION (Narrative) (Details) - USD ($) $ in Millions			12 Months Ended
	Mar. 01, 2018	Jan. 30, 2018	Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016	Oct. 29, 2016	Feb. 23, 2015
Condensed Financial Statements, Captions [Line Items]
Long-term Debt			$ 5,732.7	$ 6,391.8
Make-whole premium			301.8	375.5	$ 599.4
Senior Notes [Member] \| Five Point Two Five Percent Notes Acquired in Acquisition, Due 2020 [Member]
Condensed Financial Statements, Captions [Line Items]
Long-term Debt			$ 750.0	750.0		$ 750.0
Debt Instrument, Interest Rate, Stated Percentage			5.25%			5.25%	5.25%
Call for redemption of 2020 Notes		$ 750.0
Make-whole premium			$ 9.8
Senior Notes [Member] \| Five Point Seven Five Percent Notes Acquired in Acquisition, Due 2023 [Member]
Condensed Financial Statements, Captions [Line Items]
Long-term Debt			$ 2,500.0	$ 2,500.0		$ 2,500.0
Debt Instrument, Interest Rate, Stated Percentage			5.75%			5.75%	5.75%
Subsequent Event [Member] \| Senior Notes [Member] \| Five Point Two Five Percent Notes Acquired in Acquisition, Due 2020 [Member]
Condensed Financial Statements, Captions [Line Items]
Redemption of 2020 notes	$ 759.8
Amortizable non-cash deferred financing costs	$ 6.1

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