Note 8 - Non-Wholly Owned Entities (Tables)

6 Months Ended

Jun. 30, 2013

Noncontrolling Interest Disclosure [Text Block]

Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table Text Block]

	June 30, 2013						December 31, 2012						June 30, 2012
In millions	Consolidated		SouthStar				Consolidated		SouthStar				Consolidated		SouthStar
Current assets	$	2,063	$	135	7	%	$	2,668	$	201	8	%	$	1,880	$	145	8	%
Long-term assets and other deferred debits		11,732		10	-			11,473		10	-			11,349		9	-
Total assets	$	13,795	$	145	1	%	$	14,141	$	211	1	%	$	13,229	$	154	1	%
Current liabilities	$	2,349	$	40	2	%	$	3,338	$	62	2	%	$	2,460	$	37	2	%
Long-term liabilities and other deferred credits		7,891		-	-			7,368		-	-			7,340		-	-
Total Liabilities		10,240		40	-			10,706		62	1			9,800		37	-
Equity		3,555		105	3			3,435		149	4			3,429		117	3
Total liabilities and equity	$	13,795	$	145	1	%	$	14,141	$	211	1	%	$	13,229	$	154	1	%

Schedule of Variable Interest Entities [Table Text Block]

	Three months ended June 30,				Six months ended June 30,
In millions	2013		2012		2013		2012
Operating revenues	$	116	$	99	$	366	$	314
Operating expenses
Cost of goods sold		95		80		259		213
Operation and maintenance		15		12		33		31
Depreciation and amortization		-		1		1		1
Taxes other than income taxes		1		1		1		2
Total operating expenses		111		94		294		247
Operating income	$	5	$	5	$	72	$	67

Equity Method Investments [Table Text Block]

	Three months ended June 30,				Six months ended June 30,
In millions	2013		2012		2013		2012
Triton	$	2	$	3	$	4	$	6
Other		-		2		1		2