NOTES PAYABLE AND LONG-TERM DEBT (Tables)

12 Months Ended

Dec. 31, 2017

Debt Instrument [Line Items]

Schedule of Short-term Debt [Table Text Block]

Notes Payable at Dec 31
In millions	2017			2016
Notes payable to related companies	$	28		$	25
Year-end average interest rates	2.56		%	2.07		%

Schedule of Long-term Debt Instruments [Table Text Block]

Long-Term Debt at Dec 31	2017 Average Rate		2017			2016 Average Rate		2016
In millions
Promissory notes and debentures:
Debentures due 2023	7.875	%	$	175		7.875	%	$	175
Debentures due 2025	6.79	%	12			6.79	%	12
Debentures due 2025	7.50	%	150			7.50	%	150
Debentures due 2096	7.75	%	135			7.75	%	135
Capital lease obligations	—		8			—		9
Unamortized debt discount and issuance costs	—		(5		)	—		(5		)
Long-term debt due within one year	—		(1		)	—		(1		)
Total long-term debt			$	474				$	475

Schedule of Maturities of Long-term Debt [Table Text Block]

Maturities of Long-Term Debt for Next Five Years at Dec 31, 2017
In millions
2018	$	1
2019	$	1
2020	$	1
2021	$	1
2022	$	1