Condensed Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
OPERATING ACTIVITIES:
Net income	$ 515	$ 483
Adjustments to net income:
Depreciation and amortization	360	305
(Gain) loss from sale of investments and impairment expense	(92)	3
Provision for deferred taxes	101	17
Contingencies	17	22
Other	(40)	(84)
Changes in operating assets and liabilities:
(Increase) decrease in accounts receivable	(189)	(112)
(Increase) decrease in inventory	(11)	(69)
(Increase) decrease in prepaid expenses and other current assets	(117)	13
(Increase) decrease in other assets	(156)	11
Increase (decrease) in accounts payable and other current liabilities	266	(41)
Increase (decrease) in income taxes and other income tax payables, net	(161)	(105)
Increase (decrease) in other liabilities	41	59
Net cash provided by operating activities	534	502
INVESTING ACTIVITIES:
Capital expenditures	(579)	(479)
Acquisitions - net of cash acquired	0	(138)
Proceeds from the sale of businesses, net of cash sold	63	8
Proceeds from the sale of assets	4	4
Sale of short-term investments	1,505	1,241
Purchase of short-term investments	(1,855)	(1,181)
Decrease in restricted cash	28	11
(Increase) decrease in debt service reserves and other assets	20	(7)
Affiliate advances and equity investments	0	(40)
Proceeds from government grants for asset construction	85	1
Other investing	4	(21)
Net cash used in investing activities	(725)	(601)
FINANCING ACTIVITIES:
(Repayments) borrowings under the revolving credit facilities, net	(281)	24
Issuance of non-recourse debt	503	115
Repayments of recourse debt	(3)	(268)
Repayments of non-recourse debt	(151)	(201)
Payments for financing fees	(12)	(5)
Distributions to noncontrolling interests	(19)	(43)
Contributions from noncontrolling interests	5	0
Financed capital expenditures	(6)	(17)
Purchase of treasury stock	0	(63)
Other financing	1	(5)
Net cash provided by (used in) financing activities	37	(463)
Effect of exchange rate changes on cash	25	15
Decrease in cash of discontinued and held for sale businesses	113	7
Total decrease in cash and cash equivalents	(16)	(540)
Cash and cash equivalents, beginning	1,704	2,522
Cash and cash equivalents, ending	1,688	1,982
SUPPLEMENTAL DISCLOSURES:
Cash payments for interest, net of amounts capitalized	291	229
Cash payments for income taxes, net of refunds	$ 325	$ 304