Note 8 - Equity (Tables)

6 Months Ended

Jun. 30, 2014

Stockholders' Equity Note [Abstract]

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

	2014									2013
In millions (1)	Cash flow hedges			Retirement benefit plans			Total			Cash flow hedges			Retirement benefit plans			Total
For the three months ended June 30
As of beginning of period	$	1		$	(136	)	$	(135	)	$	1		$	(212	)	$	(211	)
OCI, before reclassifications		-			-			-			(1	)		-			(1	)
Amounts reclassified from accumulated OCI		(1	)		3			2			(1	)		4			3
Net current-period other comprehensive (loss) income		(1	)		3			2			(2	)		4			2
As of end of period	$	-		$	(133	)	$	(133	)	$	(1	)	$	(208	)	$	(209	)

For the six months ended June 30
As of beginning of period	$	1		$	(137	)	$	(136	)	$	(3	)	$	(215	)	$	(218	)
OCI, before reclassifications		4			-			4			1			-			1
Amounts reclassified from accumulated OCI		(5	)		4			(1	)		1			7			8
Net current-period other comprehensive income		(1	)		4			3			2			7			9
As of end of period	$	-		$	(133	)	$	(133	)	$	(1	)	$	(208	)	$	(209	)

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

	Three months ended June 30,						Six months ended June 30,
In millions (1)	2014			2013			2014			2013
Cash flow hedges
Cost of goods sold (natural gas contracts)	$	2		$	1		$	5		$	1
Operation and maintenance expense (natural gas contracts)		-			-			1			-
Interest expense (interest rate contracts)		-			-			-			(3	)
Total before income tax		2			1			6			(2	)
Income tax benefit		(1	)		-			(1	)		1
Total cash flow hedges		1			1			5			(1	)
Retirement benefit plans
Operation and maintenance expense (actuarial losses)(2)		(6	)		(7	)		(8	)		(13	)
Operation and maintenance expense (prior service credits) (2)		1			-			1			2
Total before income tax		(5	)		(7	)		(7	)		(11	)
Income tax benefit		2			3			3			4
Total retirement benefit plans		(3	)		(4	)		(4	)		(7	)
Total reclassification for the period	$	(2	)	$	(3	)	$	1		$	(8	)