Consolidated Statements of Financial Position (USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Current assets
Cash and cash equivalents	$ 81		$ 108
Short-term investments	49		56
Receivables
Energy marketing	786		672
Gas	385		362
Unbilled revenues	268		235
Other	83		60
Less allowance for uncollectible accounts	29		28
Total receivables, net	1,493		1,301
Inventories
Natural gas	637		679
Other	21		20
Total inventories	658		699
Assets held for sale	283		291
Regulatory assets	114	[1]	98	[1]
Derivative instruments	99		130
Prepaid expenses	63		132
Other	55		21
Total current assets	2,895		2,836
Long-term assets and other deferred debits
Property, plant and equipment	10,938		10,319
Less accumulated depreciation	2,295	[1]	2,114	[1]
Property, plant and equipment, net	8,643	[1]	8,205	[1]
Goodwill	1,827		1,776
Regulatory assets	705	[1]	939	[1]
Intangible assets	145	[1]	71	[1]
Long-term investments	113		128
Pension assets	117		33
Derivative instruments	20		14
Other	85		68
Total long-term assets and other deferred debits	11,655		11,234
Total assets	14,550		14,070
Current liabilities
Short-term debt	1,171		1,377
Energy marketing trade payables	671		611
Other accounts payable - trade	421		325
Regulatory liabilities	183	[1]	161	[1]
Customer deposits and credit balances	136		143
Accrued taxes	85		51
Derivative instruments	75		33
Accrued environmental remediation liabilities	70		57
Accrued wages and salaries	66		27
Accrued interest	52		53
Liabilities held for sale	40		39
Accrued regulatory infrastructure program costs	5		121
Current portion of long-term debt and capital leases			226
Other	143		112
Total current liabilities	3,118		3,336
Long-term liabilities and other deferred credits
Long-term debt	3,813		3,327
Accumulated deferred income taxes	1,628		1,561
Regulatory liabilities	1,518	[1]	1,477	[1]
Accrued pension and retiree welfare benefits	404		508
Accrued environmental remediation liabilities	377		387
Derivative instruments	5		6
Other	74		77
Total long-term liabilities and other deferred credits	7,819		7,343
Total liabilities and other deferred credits	10,937		10,679
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		2,015
Retained earnings	1,063	[2]	990	[2]
Accumulated other comprehensive loss	(136)	[3]	(218)	[3]
Treasury shares, at cost: 216,523 shares at December 31, 2013 and 2012	(8)		(8)
Total common shareholders’ equity	3,568		3,369
Noncontrolling interest	45		22
Total equity	3,613		3,391
Total liabilities and equity	$ 14,550		$ 14,070

[1] Amounts revised to include prior period adjustments. See Note 15 for additional information.

[2] Reflects cumulative effects of adjustments for all periods. The impacts to each year are reflected in the tables on next page.

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