Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 448	$ 322
Reconciliation of net income to net cash provided by operating activities:
Depreciation and amortization	373	312
Deferred income taxes	(109)	3
Amortization included in interest expense	(12)	(16)
Non-cash compensation expense	20	16
Gain on sale of AmeriGas common units	(70)	0
LIFO valuation adjustments	(14)	(38)
Equity in earnings of unconsolidated affiliates	(104)	(90)
Distributions from unconsolidated affiliates	67	100
Other non-cash	(16)	17
Net change in operating assets and liabilities, net of effects of acquisitions and deconsolidation	246	(296)
Net cash provided by operating activities	829	330
CASH FLOWS FROM INVESTING ACTIVITIES:
Cash paid for acquisitions, net of cash received	(214)	0
Cash proceeds from the sale of AmeriGas common units	381	0
Capital expenditures (excluding allowance for equity funds used during construction)	(942)	(761)
Contributions in aid of construction costs	7	8
Contributions to unconsolidated affiliates	(50)	(1)
Distributions from unconsolidated affiliates in excess of cumulative earnings	27	30
Proceeds from the sale of assets	11	21
Other	(21)	3
Net cash used in investing activities	(801)	(700)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from borrowings	3,170	2,899
Repayments of long-term debt	(1,977)	(1,961)
Subsidiary equity offerings, net of issue costs	175	192
Distributions to partners	195	179
Debt issuance costs	(17)	(16)
Distributions to noncontrolling interest	(397)	(333)
Capital contributions received from noncontrolling interest	0	11
Units repurchased under buyback program	(366)	0
Other, net	(1)	(1)
Net cash provided by financing activities	392	612
INCREASE IN CASH AND CASH EQUIVALENTS	420	242
CASH AND CASH EQUIVALENTS, beginning of period	590	372
CASH AND CASH EQUIVALENTS, end of period	$ 1,010	$ 614