K. DEBT

	(In Millions)
	At December 31
	2015		2014
Notes and debentures:
4.800%, due June 15, 2015	$	—	$	500
6.125%, due October 3, 2016		1,000		1,000
5.850%, due March 15, 2017		300		300
6.625%, due April 15, 2018		114		114
7.125%, due March 15, 2020		500		500
5.950%, due March 15, 2022		400		400
4.450%, due April 1, 2025		500		—
7.750%, due August 1, 2029		296		296
6.500%, due August 15, 2032		300		300
Other		13		14

		3,423		3,424
Less: Current portion		1,005		505

Total long-term debt	$	2,418	$	2,919

All of the notes and debentures above are senior indebtedness and, other than the 6.625% notes due 2018 and the 7.75% notes due 2029, are redeemable at our option.

On June 15, 2015, we repaid and retired all of our $500 million, 4.8% Notes on the scheduled retirement date.

On March 24, 2015, we issued $500 million of 4.45% Notes due April 1, 2025.

On March 28, 2013, we entered into a credit agreement (the "Credit Agreement") with a bank group, with an aggregate commitment of $1.25 billion and a maturity date of March 28, 2018. On May 29, 2015 and August 28, 2015, we amended the Credit Agreement with the bank group (the "Amended Credit Agreement"). The Amended Credit Agreement reduces the aggregate commitment to $750 million and extends the maturity date to May 29, 2020. Under the Amended Credit Agreement, at our request and subject to certain conditions, we can increase the aggregate commitment up to an additional $375 million with the current bank group or new lenders.

The Amended Credit Agreement provides for an unsecured revolving credit facility available to us and one of our foreign subsidiaries, in U.S. dollars, European euros and certain other currencies. Borrowings under the revolver denominated in euros are limited to $500 million, equivalent. We can also borrow swingline loans up to $75 million and obtain letters of credit of up to $100 million; any outstanding letters of credit under the Amended Credit Agreement reduce our borrowing capacity. At December 31, 2015, we had $5 million of outstanding standby letters of credit.

Revolving credit loans bear interest under the Amended Credit Agreement, at our option, at (A) a rate per annum equal to the greater of (i) the prime rate, (ii) the Federal Funds effective rate plus 0.50% and (iii) LIBOR plus 1.0% (the "Alternative Base Rate"); plus an applicable margin based upon our then-applicable corporate credit ratings; or (B) LIBOR plus an applicable margin based upon our then-applicable corporate credit ratings. The foreign currency revolving credit loans bear interest at a rate equal to LIBOR plus an applicable margin based upon our then-applicable corporate credit ratings.

The Amended Credit Agreement contains financial covenants requiring us to maintain (A) a maximum net leverage ratio, as adjusted for certain items, of 4.0 to 1.0, and (B) a minimum interest coverage ratio, as adjusted for certain items, equal to or greater than 2.5 to 1.0.

In order for us to borrow under the Amended Credit Agreement, there must not be any default in our covenants in the Amended Credit Agreement (i.e., in addition to the two financial covenants, principally limitations on subsidiary debt, negative pledge restrictions, legal compliance requirements and maintenance of properties and insurance) and our representations and warranties in the Amended Credit Agreement must be true in all material respects on the date of borrowing (i.e., principally no material adverse change or litigation likely to result in a material adverse change, since December 31, 2014, in each case, no material ERISA or environmental non-compliance, and no material tax deficiency). We were in compliance with all covenants and no borrowings have been made at December 31, 2015.

At December 31, 2015, the debt maturities during each of the next five years were as follows: 2016 – $1,005 million; 2017 – $301 million; 2018 – $115 million; 2019 – $1 million and 2020 – $501 million.

Interest paid was $216 million, $220 million and $232 million in 2015, 2014 and 2013, respectively.