Consolidating Financial Information (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash Flows from Operating Activities:
Total Cash Flows from Operating Activities	$ (1,543)	$ (937)
Cash Flows from Investing Activities:
Capital Expenditures	(229)	(271)
Asset Dispositions	2	5
Government Grants Received	1	4
Decrease in Restricted Cash	4	(23)
Short Term Securities Acquired	(25)	(20)
Short Term Securities Redeemed	35	22
Capital Contributions and Loans Incurred	0	0
Capital Redemptions and Loans Paid	0	0
Other Transactions	1	0
Total Cash Flows from Investing Activities	(211)	(283)
Cash Flows from Financing Activities:
Short Term Debt and Overdrafts Incurred	13	30
Short Term Debt and Overdrafts Paid	0	(24)
Long Term Debt Incurred	1,104	1,558
Long Term Debt Paid	(272)	(78)
Common Stock Issued	24	2
Common Stock Repurchased	(32)	0
Common Stock Dividends Paid	(12)	0
Preferred Stock Dividends Paid	(7)	(7)
Capital Contributions and Loans Incurred	0	0
Capital Redemptions and Loans Paid	0	0
Intercompany Dividends Paid	0	0
Transactions with Minority Interests in Subsidiaries	(23)	(4)
Debt Related Costs and Other Transactions	0	(15)
Total Cash Flows from Financing Activities	795	1,462
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(184)	(137)
Net Change in Cash and Cash Equivalents	(1,143)	105
Cash and Cash Equivalents at Beginning of the Period	2,996	2,281
Cash and Cash Equivalents at End of the Period	1,853	2,386
Parent Company
Cash Flows from Operating Activities:
Total Cash Flows from Operating Activities	(1,132)	(597)
Cash Flows from Investing Activities:
Capital Expenditures	(86)	(75)
Asset Dispositions	0	0
Government Grants Received	0	0
Decrease in Restricted Cash	0	0
Short Term Securities Acquired	0	0
Short Term Securities Redeemed	0	0
Capital Contributions and Loans Incurred	(187)	0
Capital Redemptions and Loans Paid	364	208
Other Transactions	1	0
Total Cash Flows from Investing Activities	92	133
Cash Flows from Financing Activities:
Short Term Debt and Overdrafts Incurred	0	0
Short Term Debt and Overdrafts Paid	(47)	(96)
Long Term Debt Incurred	300	900
Long Term Debt Paid	(202)	(5)
Common Stock Issued	24	2
Common Stock Repurchased	(32)	0
Common Stock Dividends Paid	(12)	0
Preferred Stock Dividends Paid	(7)	(7)
Capital Contributions and Loans Incurred	452	170
Capital Redemptions and Loans Paid	(209)	(203)
Intercompany Dividends Paid	0	0
Transactions with Minority Interests in Subsidiaries	0	0
Debt Related Costs and Other Transactions	0	(15)
Total Cash Flows from Financing Activities	267	746
Effect of Exchange Rate Changes on Cash and Cash Equivalents	0	0
Net Change in Cash and Cash Equivalents	(773)	282
Cash and Cash Equivalents at Beginning of the Period	1,269	802
Cash and Cash Equivalents at End of the Period	496	1,084
Guarantor Subsidiaries
Cash Flows from Operating Activities:
Total Cash Flows from Operating Activities	(36)	(2)
Cash Flows from Investing Activities:
Capital Expenditures	(5)	(5)
Asset Dispositions	0	0
Government Grants Received	0	0
Decrease in Restricted Cash	0	0
Short Term Securities Acquired	0	0
Short Term Securities Redeemed	0	0
Capital Contributions and Loans Incurred	0	0
Capital Redemptions and Loans Paid	0	0
Other Transactions	0	0
Total Cash Flows from Investing Activities	(5)	(5)
Cash Flows from Financing Activities:
Short Term Debt and Overdrafts Incurred	9	8
Short Term Debt and Overdrafts Paid	0	0
Long Term Debt Incurred	0	0
Long Term Debt Paid	0	0
Common Stock Issued	0	0
Common Stock Repurchased	0	0
Common Stock Dividends Paid	0	0
Preferred Stock Dividends Paid	0	0
Capital Contributions and Loans Incurred	0	0
Capital Redemptions and Loans Paid	0	0
Intercompany Dividends Paid	0	0
Transactions with Minority Interests in Subsidiaries	0	0
Debt Related Costs and Other Transactions	0	0
Total Cash Flows from Financing Activities	9	8
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(2)	(2)
Net Change in Cash and Cash Equivalents	(34)	(1)
Cash and Cash Equivalents at Beginning of the Period	94	68
Cash and Cash Equivalents at End of the Period	60	67
Non-Guarantor Subsidiaries
Cash Flows from Operating Activities:
Total Cash Flows from Operating Activities	(349)	(334)
Cash Flows from Investing Activities:
Capital Expenditures	(139)	(192)
Asset Dispositions	2	5
Government Grants Received	1	4
Decrease in Restricted Cash	4	(23)
Short Term Securities Acquired	(25)	(20)
Short Term Securities Redeemed	35	22
Capital Contributions and Loans Incurred	(452)	(170)
Capital Redemptions and Loans Paid	209	203
Other Transactions	0	0
Total Cash Flows from Investing Activities	(365)	(171)
Cash Flows from Financing Activities:
Short Term Debt and Overdrafts Incurred	51	118
Short Term Debt and Overdrafts Paid	0	(24)
Long Term Debt Incurred	804	658
Long Term Debt Paid	(70)	(73)
Common Stock Issued	0	0
Common Stock Repurchased	0	0
Common Stock Dividends Paid	0	0
Preferred Stock Dividends Paid	0	0
Capital Contributions and Loans Incurred	187	0
Capital Redemptions and Loans Paid	(364)	(208)
Intercompany Dividends Paid	(25)	(3)
Transactions with Minority Interests in Subsidiaries	(23)	(4)
Debt Related Costs and Other Transactions	0	0
Total Cash Flows from Financing Activities	560	464
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(182)	(135)
Net Change in Cash and Cash Equivalents	(336)	(176)
Cash and Cash Equivalents at Beginning of the Period	1,633	1,411
Cash and Cash Equivalents at End of the Period	1,297	1,235
Consolidating Entries and Eliminations
Cash Flows from Operating Activities:
Total Cash Flows from Operating Activities	(26)	(4)
Cash Flows from Investing Activities:
Capital Expenditures	1	1
Asset Dispositions	0	0
Government Grants Received	0	0
Decrease in Restricted Cash	0	0
Short Term Securities Acquired	0	0
Short Term Securities Redeemed	0	0
Capital Contributions and Loans Incurred	639	170
Capital Redemptions and Loans Paid	(573)	(411)
Other Transactions	0	0
Total Cash Flows from Investing Activities	67	(240)
Cash Flows from Financing Activities:
Short Term Debt and Overdrafts Incurred	(47)	(96)
Short Term Debt and Overdrafts Paid	47	96
Long Term Debt Incurred	0	0
Long Term Debt Paid	0	0
Common Stock Issued	0	0
Common Stock Repurchased	0	0
Common Stock Dividends Paid	0	0
Preferred Stock Dividends Paid	0	0
Capital Contributions and Loans Incurred	(639)	(170)
Capital Redemptions and Loans Paid	573	411
Intercompany Dividends Paid	25	3
Transactions with Minority Interests in Subsidiaries	0	0
Debt Related Costs and Other Transactions	0	0
Total Cash Flows from Financing Activities	(41)	244
Effect of Exchange Rate Changes on Cash and Cash Equivalents	0	0
Net Change in Cash and Cash Equivalents	0	0
Cash and Cash Equivalents at Beginning of the Period	0	0
Cash and Cash Equivalents at End of the Period	$ 0	$ 0