Note 8 - Equity (Tables)

3 Months Ended

Mar. 31, 2014

Stockholders' Equity Note [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

In millions (1)	Cash flow hedges			Retirement benefit plans			Total
As of December 31, 2012	$	(3	)	$	(215	)	$	(218	)
OCI, before reclassifications		2			-			2
Amounts reclassified from accumulated OCI		2			3			5
As of March 31, 2013		1			(212	)		(211	)
As of December 31, 2013		1			(137	)		(136	)
OCI, before reclassifications		4			-			4
Amounts reclassified from accumulated OCI		(4	)		1			(3	)
As of March 31, 2014	$	1		$	(136	)	$	(135	)

Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]

	Three months ended March 31,
In millions (1)	2014			2013
Cash flow hedges
Natural gas contracts (2)	$	4		$	-
Interest rate contracts (3)		-			(3	)
Total before income tax		4			(3	)
Income tax benefit		-			1
Total cash flow hedges		4			(2	)
Retirement benefit plan amortization of
Actuarial losses (4)		(2	)		(6	)
Prior service credits (4)		-			1
Total before income tax		(2	)		(5	)
Income tax benefit		1			2
Total retirement benefit plans		(1	)		(3	)
Total reclassification for the period	$	3		$	(5	)