Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Current Assets
Cash and cash equivalents	$ 464	$ 213
Receivables, net	712	806
Inventory	287	307
Fuel tracker	19	41
Other	268	281
Total current assets	1,750	1,648
Investments and Other Assets
Investments in and loans to unconsolidated affiliates	2,742	2,592
Goodwill	4,203	4,154
Other	401	310
Total investments and other assets	7,346	7,056
Property, Plant and Equipment
Cost	32,736	29,843
Less accumulated depreciation and amortization	7,399	6,925
Net property, plant and equipment	25,337	22,918
Regulatory Assets and Deferred Debits	1,504	1,301
Total Assets	35,937	32,923
Current Liabilities
Accounts payable	736	511
Commercial paper	1,637	1,112
Taxes accrued	73	78
Interest accrued	140	179
Current maturities of long-term debt	467	652
Other	634	860
Total current liabilities	3,687	3,392
Long-term Debt	13,094	12,892
Deferred Credits and Other Liabilities
Deferred income taxes	5,758	5,445
Regulatory and other	1,417	1,323
Total deferred credits and other liabilities	7,175	6,768
Commitments and Contingencies
Preferred Stock of Subsidiaries	562	339
Equity
Preferred stock, $0.001 par, 22 million shares authorized, no shares outstanding	0	0
Common stock, $0.001 par, 1 billion shares authorized, 701 million and 671 million shares outstanding at September 30, 2016 and December 31, 2015, respectively	1	1
Additional paid-in capital	5,977	5,053
Retained earnings	1,477	1,741
Accumulated other comprehensive income (loss)	13	(269)
Total controlling interests	7,468	6,526
Noncontrolling interests	3,951	3,006
Total equity	11,419	9,532
Total Liabilities and Equity	$ 35,937	$ 32,923