Consolidating Financial Information (Details 2) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash Flows from Operating Activities:
Total Cash Flows from Operating Activities	$ (298)	$ (329)
Cash Flows from Investing Activities:
Capital Expenditures	(734)	(788)
Asset Dispositions (Note 3)	8	14
Government Grants Received	6	2
Decrease (Increase) in Restricted Cash	3	(17)
Short Term Securities Acquired	(89)	(25)
Short Term Securities Redeemed	81	10
Capital Contributions and Loans Incurred	0	0
Capital Redemptions and Loans Paid	0	0
Other Transactions	0	4
Total Cash Flows from Investing Activities	(725)	(800)
Cash Flows from Financing Activities:
Short Term Debt and Overdrafts Incurred	30	74
Short Term Debt and Overdrafts Paid	(89)	(89)
Long Term Debt Incurred	2,152	3,042
Long Term Debt Paid	(660)	(2,322)
Common Stock Issued	15	1
Preferred Stock Dividends Paid	(22)	(22)
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	(10)	(23)
Debt Related Costs and Other Transactions	(16)	(63)
Total Cash Flows from Financing Activities	1,400	598
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(158)	16
Net Change in Cash and Cash Equivalents	219	(515)
Cash and Cash Equivalents at Beginning of the Period	2,281	2,772
Cash and Cash Equivalents at End of the Period	2,500	2,257
Parent Company
Cash Flows from Operating Activities:
Total Cash Flows from Operating Activities	(362)	94
Cash Flows from Investing Activities:
Capital Expenditures	(132)	(165)
Asset Dispositions (Note 3)	2	5
Government Grants Received	0	0
Decrease (Increase) in Restricted Cash	0	(1)
Short Term Securities Acquired	0	0
Short Term Securities Redeemed	0	0
Capital Contributions and Loans Incurred	(61)	(80)
Capital Redemptions and Loans Paid	214	81
Other Transactions		4
Total Cash Flows from Investing Activities	23	(156)
Cash Flows from Financing Activities:
Short Term Debt and Overdrafts Incurred	0	0
Short Term Debt and Overdrafts Paid	(53)	0
Long Term Debt Incurred	900	800
Long Term Debt Paid	(8)	(759)
Common Stock Issued	15	1
Preferred Stock Dividends Paid	(22)	(22)
Capital Contributions and Loans Incurred	170	150
Capital Redemptions and Loans Paid	(364)	0
Intercompany Dividends Paid	0	0
Transactions with Minority Interests in Subsidiaries	0	(17)
Debt Related Costs and Other Transactions	(16)	(63)
Total Cash Flows from Financing Activities	622	90
Effect of Exchange Rate Changes on Cash and Cash Equivalents	0	0
Net Change in Cash and Cash Equivalents	283	28
Cash and Cash Equivalents at Beginning of the Period	802	916
Cash and Cash Equivalents at End of the Period	1,085	944
Guarantor Subsidiaries
Cash Flows from Operating Activities:
Total Cash Flows from Operating Activities	(34)	0
Cash Flows from Investing Activities:
Capital Expenditures	(12)	(10)
Asset Dispositions (Note 3)	0	0
Government Grants Received	0	0
Decrease (Increase) 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
Total Cash Flows from Investing Activities	(12)	(10)
Cash Flows from Financing Activities:
Short Term Debt and Overdrafts Incurred	(11)	0
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
Preferred Stock Dividends Paid	0	0
Capital Contributions and Loans Incurred	58	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	47	0
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(2)	3
Net Change in Cash and Cash Equivalents	(1)	(7)
Cash and Cash Equivalents at Beginning of the Period	68	112
Cash and Cash Equivalents at End of the Period	67	105
Non-Guarantor Subsidiaries
Cash Flows from Operating Activities:
Total Cash Flows from Operating Activities	135	(352)
Cash Flows from Investing Activities:
Capital Expenditures	(600)	(618)
Asset Dispositions (Note 3)	6	9
Government Grants Received	6	2
Decrease (Increase) in Restricted Cash	3	(16)
Short Term Securities Acquired	(89)	(25)
Short Term Securities Redeemed	81	10
Capital Contributions and Loans Incurred	(170)	(150)
Capital Redemptions and Loans Paid	364	0
Other Transactions		0
Total Cash Flows from Investing Activities	(399)	(788)
Cash Flows from Financing Activities:
Short Term Debt and Overdrafts Incurred	94	74
Short Term Debt and Overdrafts Paid	(89)	(89)
Long Term Debt Incurred	1,252	2,242
Long Term Debt Paid	(652)	(1,563)
Common Stock Issued	0	0
Preferred Stock Dividends Paid	0	0
Capital Contributions and Loans Incurred	3	80
Capital Redemptions and Loans Paid	(214)	(81)
Intercompany Dividends Paid	(27)	(66)
Transactions with Minority Interests in Subsidiaries	(10)	(6)
Debt Related Costs and Other Transactions	0	0
Total Cash Flows from Financing Activities	357	591
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(156)	13
Net Change in Cash and Cash Equivalents	(63)	(536)
Cash and Cash Equivalents at Beginning of the Period	1,411	1,744
Cash and Cash Equivalents at End of the Period	1,348	1,208
Consolidating Entries and Eliminations
Cash Flows from Operating Activities:
Total Cash Flows from Operating Activities	(37)	(71)
Cash Flows from Investing Activities:
Capital Expenditures	10	5
Asset Dispositions (Note 3)	0	0
Government Grants Received	0	0
Decrease (Increase) in Restricted Cash	0	0
Short Term Securities Acquired	0	0
Short Term Securities Redeemed	0	0
Capital Contributions and Loans Incurred	231	230
Capital Redemptions and Loans Paid	(578)	(81)
Other Transactions		0
Total Cash Flows from Investing Activities	(337)	154
Cash Flows from Financing Activities:
Short Term Debt and Overdrafts Incurred	(53)	0
Short Term Debt and Overdrafts Paid	53	0
Long Term Debt Incurred	0	0
Long Term Debt Paid	0	0
Common Stock Issued	0	0
Preferred Stock Dividends Paid	0	0
Capital Contributions and Loans Incurred	(231)	(230)
Capital Redemptions and Loans Paid	578	81
Intercompany Dividends Paid	27	66
Transactions with Minority Interests in Subsidiaries	0	0
Debt Related Costs and Other Transactions	0	0
Total Cash Flows from Financing Activities	374	(83)
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