FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

12 Months Ended

Dec. 31, 2018

Estimated fair values and carrying values of our long-term debt and line of credit

The estimated fair values and carrying values of our long-term debt and line of credit consisted of the following:

DOLLAR AMOUNTS IN MILLIONS
	DECEMBER 31, 2018				DECEMBER 31, 2017
	CARRYING VALUE		FAIR VALUE  (LEVEL 2)		CARRYING VALUE		FAIR VALUE (LEVEL 2)
Long-term debt (including current maturities) and line of credit:
Fixed rate	$	5,694	$	6,345	$	5,768	$	6,823
Variable rate	650		650		224		225
Total Debt	$	6,344	$	6,995	$	5,992	$	7,048