Consolidated Statements of Financial Position (USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Current assets
Cash and cash equivalents	$ 105		$ 131
Short-term investments	50		58
Receivables
Energy marketing	786		677
Gas	385		362
Unbilled revenues	268		235
Other	119		89
Less allowance for uncollectible accounts	29		28
Total receivables, net	1,529		1,335
Inventories
Natural gas	637		679
Other	30		29
Total inventories	667		708
Regulatory assets	162		145
Derivative instruments	99		130
Prepaid expenses	65		141
Other	56		20
Total current assets	2,733		2,668
Long-term assets and other deferred debits
Property, plant and equipment	11,104		10,478
Less accumulated depreciation	2,323		2,131
Property, plant and equipment, net	8,781		8,347
Goodwill	1,888		1,837
Regulatory assets	737		944
Intangible assets	173		96
Long-term investments	119		136
Pension assets	117		33
Derivative instruments	20		14
Other	88		66
Total long-term assets and other deferred debits	11,923		11,473
Total assets	14,656	[1]	14,141	[1]
Current liabilities
Short-term debt	1,171		1,377
Energy marketing trade payables	671		611
Other accounts payable - trade	432		334
Regulatory liabilities	183		161
Customer deposits and credit balances	136		143
Accrued taxes	85		53
Derivative instruments	75		33
Accrued wages and salaries	73		34
Accrued environmental remediation liabilities	70		57
Accrued interest	52		53
Accrued regulatory infrastructure program costs	5		121
Current portion of long-term debt and capital leases			226
Other	169		135
Total current liabilities	3,122		3,338
Long-term debt	3,813		3,327
Accumulated deferred income taxes	1,667		1,588
Regulatory liabilities	1,518		1,477
Accrued pension and retiree welfare benefits	404		508
Accrued environmental remediation liabilities	377		387
Derivative instruments	5		6
Other	74		75
Total long-term liabilities and other deferred credits	7,858		7,368
Total liabilities and other deferred credits	10,980		10,706
Common shareholders’ equity
Common stock, $5 par value; 750,000,000 shares authorized; outstanding: 118,888,876 shares at December 31, 2013 and 117,855,075 shares at December 31, 2012	595		590
Additional paid-in capital	2,054		2,014
Retained earnings	1,126		1,035
Accumulated other comprehensive loss	(136)	[2]	(218)	[2]
Treasury shares, at cost: 216,523 shares at December 31, 2013 and 2012	(8)		(8)
Total common shareholders’ equity	3,631		3,413
Noncontrolling interest	45		22
Total equity	3,676		3,435
Total liabilities and equity	$ 14,656		$ 14,141

[1] Identifiable assets are those dedicated to each segment's operations.

[2] All amounts are net of income taxes. Amounts in parentheses indicate debits to accumulated other comprehensive loss.