	March 31,		December 31,
(In millions)	2017		2016
Short-term:
Current maturities of long-term debt	$	131	$	250
Other, including capital leases		11		26
Total short-term debt	$	142	$	276
Long-term:
$131 million, 6.35% Notes due 2018	$	-	$	131
$250 million, 4.375% Notes due 2020 ⁽¹⁾		252		252
$300 million, 5.125% Notes due 2020 ⁽¹⁾		301		301
$78 million, 6.37% Notes due 2021		78		78
$300 million, 4.5% Notes due 2021⁽¹⁾		301		302
$750 million, 4% Notes due 2022		744		744
$100 million, 7.65% Notes due 2023		100		100
$17 million, 8.3% Notes due 2023		17		17
$900 million, 3.25% Notes due 2025		893		893
$300 million, 7.875% Debentures due 2027		299		299
$83 million, 8.3% Step Down Notes due 2033		82		82
$500 million, 6.15% Notes due 2036		498		498
$300 million, 5.875% Notes due 2041		296		296
$750 million, 5.375% Notes due 2042		743		743
Other, including capital leases		17		20
Total long-term debt	$	4,621	$	4,756

(1) The Company has entered into interest rate swap contracts hedging a portion of these fixed-rate debt instruments. See Note 11 for further information about the Company's interest rate risk management and these derivative instruments.

The Company repaid $250 million of long-term notes that matured in the first quarter of 2017.

The Company has a five-year revolving credit and letter of credit agreement for $1.5 billion that permits up to $500 million to be used for letters of credit. This agreement extends through December 12, 2019 and is diversified among 16 banks, with three banks each having 12% of the commitment and the remainder spread among 13 banks in varying amounts. The credit agreement includes options subject to consent by the administrative agent and the committing banks to increase the commitment amount to $2 billion and to extend the term past December 12, 2019. The credit agreement is available for general corporate purposes, including for the issuance of letters of credit. The credit agreement contains customary covenants and restrictions, including a financial covenant that the Company may not permit its leverage ratio – which is total consolidated debt to total consolidated capitalization (each as defined in the credit agreement) – to be greater than 0.50. The leverage ratio calculation excludes the following items that are included in accumulated other comprehensive loss on the Company's consolidated balance sheets: net unrealized appreciation on fixed maturities and the portion of the post-retirement benefits liability adjustment attributable to pension.

In addition to the $4.8 billion of debt outstanding as of March 31, 2017, the Company had $10.5 billion of borrowing capacity within the maximum debt coverage covenant in the credit agreement. This additional borrowing capacity includes the $1.5 billion available under the credit agreement. Letters of credit outstanding as of March 31, 2017 totaled $13 million.