Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Long-Term Debt

December 31 (add 000)	2015			2014
6.6% Senior Notes, due 2018	$	299,368		$	299,123
7% Debentures, due 2025		124,532			124,500
6.25% Senior Notes, due 2037		228,223			228,184
4.25% Senior Notes, due 2024		395,717			395,309
Floating Rate Notes, due 2017, interest rate of 1.71% and 1.33% at December 31, 2015 and 2014, respectively		299,318			298,869
Term Loan Facility, due 2018, interest rate of 1.86% and 1.67% at December 31, 2015 and 2014, respectively		224,075			236,258
Other notes		1,662			3,152
Total		1,572,895			1,585,395
Less current maturities		(19,246	)		(14,336	)
Long-term debt	$	1,553,649		$	1,571,059

Schedule Principal Amount, Effective Interest Rate and Maturity Date of Debentures and Senior Notes

	Principal Amount (add 000)		Effective Interest Rate			Maturity Date
6.6% Senior Notes	$	300,000		6.81	%	April 15, 2018
7% Debentures	$	125,000		7.12	%	December 1, 2025
6.25% Senior Notes	$	230,000		6.45	%	May 1, 2037
4.25% Senior Notes	$	400,000		4.25	%	July 2, 2024
Floating Rate Notes	$	300,000	LIBOR+1.10%			June 30, 2017

Commitments Amounts Under Senior Unsecured Credit Facilities

Lender (add 000)	Revolving Facility Commitment		Term Loan Facility Commitment
JPMorgan Chase Bank, N.A.	$	46,667	$	33,333
Wells Fargo Bank, N.A.		46,667		33,333
BB&T		46,667		33,333
SunTrust Bank		46,667		33,333
Deutsche Bank AG New York Branch		46,667		33,333
PNC Bank, National Association		29,167		20,833
Regions Bank		29,167		20,833
The Northern Trust Company		29,167		20,833
Comerica Bank		14,582		10,418
The Bank of Tokyo-Mitsubishi UFJ, Ltd.		14,582		10,418
Total	$	350,000	$	250,000

Corporation's Long-Term Debt Maturities

The Corporation’s long-term debt maturities for the five years following December 31, 2015, and thereafter are:

(add 000)
2016	$	19,246
2017		318,028
2018		486,843
2019		90
2020		60
Thereafter		748,628
Total	$	1,572,895