Note 11 - Segment Information (Details) - Intersegment Reporting (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Dec. 31, 2013
Segment Reporting Information [Line Items]
Revenues	$ 2,462	[1]	$ 1,612	[1]
Operating expenses
Cost of goods sold	1,400	[1]	920	[1]
Operation and maintenance	289	[1]	231	[1]
Depreciation and amortization	93	[1]	102	[1]
Taxes other than income taxes	88	[1]	69	[1]
Total operating expenses	1,870	[1]	1,322	[1]
Operating income (loss)	592	[1]	290	[1]
Other income	3	[1]	5	[1]
EBIT	595	[1]	295	[1]
Identifiable and total assets	15,264	[1],[2]	13,862	[1],[2]	14,550	[1],[2]
Capital expenditures	161	[1]	147	[1]
Consolidation, Eliminations [Member] | Distribution Operations [Member]
Segment Reporting Information [Line Items]
Revenues	75	[1]	55	[1]
Consolidation, Eliminations [Member] | Retail Operations [Member]
Segment Reporting Information [Line Items]
Revenues		[1]		[1]
Consolidation, Eliminations [Member] | Wholesale Services [Member]
Segment Reporting Information [Line Items]
Revenues		[1],[3]		[1],[3]
Consolidation, Eliminations [Member] | Midstream Operations [Member]
Segment Reporting Information [Line Items]
Revenues		[1]		[1]
Consolidation, Eliminations [Member] | Other Segments [Member]
Segment Reporting Information [Line Items]
Revenues		[1],[4]		[1],[4]
Consolidation, Eliminations [Member] | Intercompany Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues	(75)	[1]	(55)	[1]
Consolidation, Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues		[1]		[1]
Operating Segments [Member] | Distribution Operations [Member]
Segment Reporting Information [Line Items]
Revenues	1,801	[1]	1,310	[1]
Operating Segments [Member] | Retail Operations [Member]
Segment Reporting Information [Line Items]
Revenues	406	[1]	302	[1]
Operating Segments [Member] | Wholesale Services [Member]
Segment Reporting Information [Line Items]
Revenues	331	[1],[3]	39	[1],[3]
Operating Segments [Member] | Midstream Operations [Member]
Segment Reporting Information [Line Items]
Revenues	44	[1]	24	[1]
Operating Segments [Member] | Other Segments [Member]
Segment Reporting Information [Line Items]
Revenues	3	[1],[4]	1	[1],[4]
Operating Segments [Member] | Intercompany Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues	(123)	[1]	(64)	[1]
Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues	2,462	[1]	1,612	[1]
Distribution Operations [Member] | Continuing Operations [Member]
Operating expenses
Identifiable and total assets	11,823	[1],[3],[5]	11,188	[1],[3],[5]
Distribution Operations [Member]
Segment Reporting Information [Line Items]
Revenues	1,726	[1]	1,255	[1]
Operating expenses
Cost of goods sold	1,202	[1]	765	[1]
Operation and maintenance	211	[1]	185	[1]
Depreciation and amortization	78	[1]	88	[1]
Taxes other than income taxes	82	[1]	64	[1]
Total operating expenses	1,573	[1]	1,102	[1]
Operating income (loss)	228	[1]	208	[1]
Other income	1	[1]	3	[1]
EBIT	229	[1]	211	[1]
Identifiable and total assets					11,634	[1],[6]
Capital expenditures	150	[1]	137	[1]
Retail Operations [Member] | Continuing Operations [Member]
Operating expenses
Identifiable and total assets	738	[1],[3],[5]	663	[1],[3],[5]
Retail Operations [Member]
Segment Reporting Information [Line Items]
Revenues	406	[1]	302	[1]
Operating expenses
Cost of goods sold	280	[1]	195	[1]
Operation and maintenance	37	[1]	31	[1]
Depreciation and amortization	8	[1]	6	[1]
Taxes other than income taxes	1	[1]	1	[1]
Total operating expenses	326	[1]	233	[1]
Operating income (loss)	80	[1]	69	[1]
Other income		[1]		[1]
EBIT	80	[1]	69	[1]
Identifiable and total assets					685	[1],[6]
Capital expenditures	3	[1]	1	[1]
Wholesale Services [Member] | Continuing Operations [Member]
Operating expenses
Identifiable and total assets	1,782	[1],[3],[5]	1,005	[1],[3],[5]
Wholesale Services [Member]
Segment Reporting Information [Line Items]
Revenues	331	[1],[3]	39	[1],[3]
Operating expenses
Cost of goods sold	3	[1],[3]	10	[1],[3]
Operation and maintenance	36	[1],[3]	13	[1],[3]
Depreciation and amortization		[1],[3]		[1],[3]
Taxes other than income taxes	1	[1],[3]	1	[1],[3]
Total operating expenses	40	[1],[3]	24	[1],[3]
Operating income (loss)	291	[1],[3]	15	[1],[3]
Other income		[1],[3]		[1],[3]
EBIT	291	[1],[3]	15	[1],[3]
Identifiable and total assets					1,163	[1],[6]
Capital expenditures	1	[1],[3]		[1],[3]
Midstream Operations [Member] | Continuing Operations [Member]
Operating expenses
Identifiable and total assets	698	[1],[3],[5]	714	[1],[3],[5]
Midstream Operations [Member]
Segment Reporting Information [Line Items]
Revenues	44	[1]	24	[1]
Operating expenses
Cost of goods sold	36	[1]	12	[1]
Operation and maintenance	6	[1]	6	[1]
Depreciation and amortization	5	[1]	4	[1]
Taxes other than income taxes	1	[1]	1	[1]
Total operating expenses	48	[1]	23	[1]
Operating income (loss)	(4)	[1]	1	[1]
Other income	1	[1]	1	[1]
EBIT	(3)	[1]	2	[1]
Identifiable and total assets					713	[1],[6]
Capital expenditures		[1]	4	[1]
Other Segments [Member] | Continuing Operations [Member]
Operating expenses
Identifiable and total assets	9,844	[1],[3],[4],[5]	9,732	[1],[3],[4],[5]
Other Segments [Member]
Segment Reporting Information [Line Items]
Revenues	3	[1],[4]	1	[1],[4]
Operating expenses
Cost of goods sold		[1],[4]		[1],[4]
Operation and maintenance	1	[1],[4]	(2)	[1],[4]
Depreciation and amortization	2	[1],[4]	4	[1],[4]
Taxes other than income taxes	3	[1],[4]	2	[1],[4]
Total operating expenses	6	[1],[4]	4	[1],[4]
Operating income (loss)	(3)	[1],[4]	(3)	[1],[4]
Other income	1	[1],[4]	1	[1],[4]
EBIT	(2)	[1],[4]	(2)	[1],[4]
Identifiable and total assets					10,160	[1],[6],[7]
Capital expenditures	7	[1],[4]	5	[1],[4]
Intercompany Eliminations [Member] | Continuing Operations [Member]
Operating expenses
Identifiable and total assets	(9,885)	[1],[3],[5]	(9,731)	[1],[3],[5]
Intercompany Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues	(48)	[1]	(9)	[1]
Operating expenses
Cost of goods sold	(121)	[1]	(62)	[1]
Operation and maintenance	(2)	[1]	(2)	[1]
Depreciation and amortization		[1]		[1]
Taxes other than income taxes		[1]		[1]
Total operating expenses	(123)	[1]	(64)	[1]
Operating income (loss)		[1]		[1]
Other income		[1]		[1]
EBIT		[1]		[1]
Capital expenditures		[1]		[1]
Continuing Operations [Member]
Operating expenses
Identifiable and total assets	$ 15,000	[1],[3],[5]	$ 13,571	[1],[3],[5]	$ 14,267	[1],[6]

[1] Amounts revised to include prior period adjustments. See Note 13 for additional information.

[2] Reflects the reclassification of the Tropical Shipping amounts as held for sale. See Note 12 for additional information.

[3] Wholesale services records its energy marketing and risk management revenues on a net basis. A reconciliation of our operating revenues and our intercompany revenues is shown in the following table.

[4] Our "other" segment now also includes our investment in Triton, which was part of our cargo shipping segment that is classified as discontinued operations. For more information see Note 12.

[5] Identifiable assets are those used in each segment's operations and exclude assets held for sale.

[6] Identifiable assets are those assets used in each segment's operations and exclude assets held for sale.

[7] Includes our investment in Triton, which was part of our cargo shipping segment that is classified as discontinued operations. For more information see Note 12.