Dollar Tree, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

LONG-TERM DEBT (Narrative) (Details)

LONG-TERM DEBT (Narrative) (Details)				1 Months Ended	9 Months Ended
LONG-TERM DEBT (Narrative) (Details)	Jan. 28, 2017	Sep. 22, 2016 USD ($)	Aug. 30, 2016	Sep. 22, 2016 USD ($)	Oct. 29, 2016 USD ($)	Oct. 31, 2015 USD ($)	Apr. 15, 2017	Jan. 13, 2017	Aug. 29, 2016 USD ($)	Jan. 30, 2016 USD ($)	Dec. 31, 2015
Debt Instrument [Line Items]
Repayments of lines of credit					$ 140,000,000	$ 0
Senior Notes \| 5.25% Acquisition Notes, due 2020
Debt Instrument [Line Items]
Principal amount										$ 750,000,000.0
Stated percentage					5.25%					5.25%
Debt outstanding					$ 750,000,000
Senior Notes \| 5.75% Acquisition Notes, due 2023
Debt Instrument [Line Items]
Principal amount										$ 2,500,000,000.0
Stated percentage					5.75%					5.75%
Debt outstanding					$ 2,500,000,000
Line of Credit \| Term Loan A
Debt Instrument [Line Items]
Debt outstanding									$ 937,500,000
Line of Credit \| Tranche A Revolving Credit Facility
Debt Instrument [Line Items]
Unused portion commitment fee percentage			0.30%
Line of Credit \| Term Loan A-1
Debt Instrument [Line Items]
Principal amount		$ 1,275,000,000.0		$ 1,275,000,000.0
Line of Credit \| Term B-3 Loans
Debt Instrument [Line Items]
Principal amount		750,000,000.0		750,000,000.0
Line of Credit \| Term Loan B-1
Debt Instrument [Line Items]
Principal amount		2,025,000,000.0		2,025,000,000.0
Repayments of lines of credit		$ 242,000,000
Line of Credit \| Senior Secured Credit Facilities
Debt Instrument [Line Items]
Principal amount										$ 6,200,000,000.0
Amortization of non-cash deferred financing costs				26,600,000
Amortization of transaction-related costs				$ 2,600,000
Line of Credit \| Senior Secured Credit Facilities \| Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount										1,250,000,000.00
Loans Payable \| Senior Secured Credit Facilities
Debt Instrument [Line Items]
Principal amount										$ 4,950,000,000.00
Debt Covenant, Maximum Ratio for Ability to Pay Dividends \| Senior Notes \| Acquisition Notes
Debt Instrument [Line Items]
Consolidated total net leverage ratio											3.50
Debt Covenant, Maximum Ratio for Ability to Pay Dividends \| Line of Credit \| Senior Secured Credit Facilities
Debt Instrument [Line Items]
Consolidated total net leverage ratio											3.50
Debt Covenant, In Compliance, Less Than Maximum Ratio for Ability to Pay Dividends \| Senior Notes \| Acquisition Notes
Debt Instrument [Line Items]
Consolidated total net leverage ratio					3.50
Debt Covenant, In Compliance, Less Than Maximum Ratio for Ability to Pay Dividends \| Line of Credit \| Senior Secured Credit Facilities
Debt Instrument [Line Items]
Consolidated total net leverage ratio					3.50
LIBOR \| Line of Credit \| Tranche A Revolving Credit Facility
Debt Instrument [Line Items]
Debt basis spread on variable rate			1.75%
LIBOR \| Line of Credit \| Term B-3 Loans
Debt Instrument [Line Items]
Debt basis spread on variable rate		2.50%
Base Rate \| Line of Credit \| Tranche A Revolving Credit Facility
Debt Instrument [Line Items]
Debt basis spread on variable rate			0.75%
Base Rate \| Line of Credit \| Term B-3 Loans
Debt Instrument [Line Items]
Debt basis spread on variable rate		1.50%
Forecast \| Line of Credit \| Term Loan A-1
Debt Instrument [Line Items]
Quarterly amortization payment, percentage of original principal amount							1.875%	1.25%
Forecast \| Line of Credit \| Term B-3 Loans
Debt Instrument [Line Items]
Quarterly amortization payment, percentage of original principal amount								0.25%
Minimum \| Forecast \| Line of Credit \| Tranche A Revolving Credit Facility
Debt Instrument [Line Items]
Unused portion commitment fee percentage	0.25%
Minimum \| Forecast \| LIBOR \| Line of Credit \| Tranche A Revolving Credit Facility
Debt Instrument [Line Items]
Debt basis spread on variable rate	1.50%
Minimum \| Forecast \| Base Rate \| Line of Credit \| Tranche A Revolving Credit Facility
Debt Instrument [Line Items]
Debt basis spread on variable rate	0.50%
Maximum \| Forecast \| Line of Credit \| Tranche A Revolving Credit Facility
Debt Instrument [Line Items]
Unused portion commitment fee percentage	0.375%
Maximum \| Forecast \| LIBOR \| Line of Credit \| Tranche A Revolving Credit Facility
Debt Instrument [Line Items]
Debt basis spread on variable rate	2.25%
Maximum \| Forecast \| Base Rate \| Line of Credit \| Tranche A Revolving Credit Facility
Debt Instrument [Line Items]
Debt basis spread on variable rate	1.25%