Note 8 - Non-Wholly Owned Entities (Tables)

9 Months Ended

Sep. 30, 2013

Noncontrolling Interest [Abstract]

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

	September 30, 2013						December 31, 2012						September 30, 2012
In millions	Consolidated		SouthStar				Consolidated		SouthStar				Consolidated		SouthStar
Current assets	$	2,091	$	192	9	%	$	2,668	$	201	8	%	$	2,135	$	152	7	%
Goodwill and other intangible assets		2,063		141	7	%		1,933		-	-			1,913		-	-
Long-term assets and other deferred debits		9,750		11	-			9,540		10	-			9,455		10	-
Total assets	$	13,904	$	344	2	%	$	14,141	$	211	1	%	$	13,503	$	162	1	%
Current liabilities	$	2,407	$	73	3	%	$	3,338	$	62	2	%	$	2,764	$	42	2	%
Long-term liabilities and other deferred credits		7,934		-	-			7,368		-	-			7,341		-	-
Total Liabilities		10,341		73	1	%		10,706		62	1			10,105		42	-
Equity		3,563		271	8	%		3,435		149	4			3,398		120	4
Total liabilities and equity	$	13,904	$	344	2	%	$	14,141	$	211	1	%		13,503	$	162	1	%

Schedule of Variable Interest Entities [Table Text Block]

	Three months ended September 30,				Nine months ended September 30,
In millions	2013		2012		2013		2012
Operating revenues	$	98	$	87	$	464	$	401
Operating expenses
Cost of goods sold		81		73		340		286
Operation and maintenance		16		13		49		44
Depreciation and amortization		1		1		2		2
Taxes other than income taxes		-		-		1		2
Total operating expenses		98		87		392		334
Operating income	$	-	$	-	$	72	$	67

Equity Method Investments [Table Text Block]

	Three months ended September 30,				Nine months ended September 30,
In millions	2013		2012		2013		2012
Triton	$	3	$	2	$	7	$	8
Other		-		-		1		2