							Outstanding
Maturity by fiscal year (Dollars in Millions)	Effective Rate			Coupon Rate			August 3, 2019			February 2, 2019			August 4, 2018
2021		4.81	%		4.00	%	$	-		$	-		$	413
2023		3.25	%		3.25	%		350			350			350
2023		4.78	%		4.75	%		184			184			184
2025		4.25	%		4.25	%		650			650			650
2029		7.36	%		7.25	%		42			42			42
2033		6.05	%		6.00	%		113			113			112
2037		6.89	%		6.88	%		101			101			101
2045		5.57	%		5.55	%		427			433			435
Outstanding long-term debt								1,867			1,873			2,287
Unamortized debt discounts and deferred financing costs								(12	)		(12	)		(14	)
Long-term debt							$	1,855		$	1,861		$	2,273
Effective interest rate								4.74	%		4.74	%		4.76	%

Our long-term debt is classified as Level 1, financial instruments with unadjusted, quoted prices listed on active market exchanges. The estimated fair value of our long-term debt was $1.9 billion at August 3, 2019, $1.8 billion at February 2, 2019, and $2.3 billion at August 4, 2018.

On July 25, 2019, we amended and extended our existing credit facility with various lenders which provides for a $1.0 billion senior unsecured five-year revolving credit facility that will mature in July 2024. Among other things, the agreement includes a maximum leverage ratio financial covenant (which is generally consistent with the ratio under our prior agreement) and restrictions on liens and subsidiary indebtedness. No amounts were outstanding on the credit facility at August 3, 2019, February 2, 2019, or August 4, 2018.

Year to date 2019, we have reduced our outstanding debt by $6 million through open market repurchases.