Consolidating Financial Information (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash Flows from Operating Activities:
TOTAL CASH FLOWS FROM OPERATING ACTIVITIES	$ 1,038	$ 773	$ 924
Cash Flows from Investing Activities:
Capital expenditures	(1,127)	(1,043)	(944)
Asset dispositions	16	76	70
Asset acquistions		0
Government grants received	2	95	0
Capital contributions and loans	0	0	0
Capital redemptions and loans	0	0	0
Increase in short term securities	(29)	(4)	0
Other transactions	17	(26)	15
TOTAL CASH FLOWS FROM INVESTING ACTIVITIES	(1,123)	(902)	(859)
Cash Flows from Financing Activities:
Short term debt and overdrafts incurred	77	179	85
Short term debt and overdrafts paid	(156)	(138)	(68)
Long term debt incurred	3,531	3,171	1,750
Long term debt paid	(3,717)	(2,650)	(1,555)
Proceeds from issuance of preferred stock	0	484	0
Preferred stock dividends paid	(29)	(15)	0
Common stock issued	3	8	1
Capital contributions and loans	0	0	0
Capital redemptions and loans	0	0	0
Intercompany dividends paid	0	0	0
Transactions with minority interests in subsidiaries	(71)	(24)	(13)
Debt related costs and other transactions	(64)	(21)	(21)
TOTAL CASH FLOWS FROM FINANCING ACTIVITIES	(426)	994	179
Effect of exchange rate changes on cash and cash equivalents	20	(98)	(161)
Net Change in Cash and Cash Equivalents	(491)	767	83
Cash and Cash Equivalents at Beginning of the Year	2,772	2,005	1,922
Cash and Cash Equivalents at End of the Year	2,281	2,772	2,005
Parent Company [Member]
Cash Flows from Operating Activities:
TOTAL CASH FLOWS FROM OPERATING ACTIVITIES	335	260	278
Cash Flows from Investing Activities:
Capital expenditures	(231)	(210)	(334)
Asset dispositions	5	69	1
Asset acquistions		0
Government grants received		0
Capital contributions and loans	(191)	(14)	0
Capital redemptions and loans	81	0	16
Increase in short term securities	0	0
Other transactions	5	(2)	26
TOTAL CASH FLOWS FROM INVESTING ACTIVITIES	(331)	(157)	(291)
Cash Flows from Financing Activities:
Short term debt and overdrafts incurred	0	0	3
Short term debt and overdrafts paid	0	0	0
Long term debt incurred	800	400	994
Long term debt paid	(762)	(750)	(974)
Proceeds from issuance of preferred stock		484
Preferred stock dividends paid	(29)	(15)
Common stock issued	3	8	1
Capital contributions and loans	150	(101)	0
Capital redemptions and loans	(200)	0	0
Intercompany dividends paid	0	0	0
Transactions with minority interests in subsidiaries	(17)	(3)	0
Debt related costs and other transactions	(63)	(2)	(21)
TOTAL CASH FLOWS FROM FINANCING ACTIVITIES	(118)	21	3
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Net Change in Cash and Cash Equivalents	(114)	124	(10)
Cash and Cash Equivalents at Beginning of the Year	916	792	802
Cash and Cash Equivalents at End of the Year	802	916	792
Guarantor Subsidiaries [Member]
Cash Flows from Operating Activities:
TOTAL CASH FLOWS FROM OPERATING ACTIVITIES	(3)	104	45
Cash Flows from Investing Activities:
Capital expenditures	(10)	(21)	(20)
Asset dispositions	0	0	0
Asset acquistions		0
Government grants received		0
Capital contributions and loans	(27)	0	0
Capital redemptions and loans	0	0	0
Increase in short term securities	0	0
Other transactions	0	0	0
TOTAL CASH FLOWS FROM INVESTING ACTIVITIES	(37)	(21)	(20)
Cash Flows from Financing Activities:
Short term debt and overdrafts incurred	0	0	2
Short term debt and overdrafts paid	0	0	0
Long term debt incurred	0	0	0
Long term debt paid	0	0	0
Proceeds from issuance of preferred stock		0
Preferred stock dividends paid	0	0
Common stock issued	0	0	0
Capital contributions and loans	0	0	0
Capital redemptions and loans	0	0	0
Intercompany dividends paid	(6)	(7)	(7)
Transactions with minority interests in subsidiaries	0	0	0
Debt related costs and other transactions	0	0	0
TOTAL CASH FLOWS FROM FINANCING ACTIVITIES	(6)	(7)	(5)
Effect of exchange rate changes on cash and cash equivalents	2	(2)	1
Net Change in Cash and Cash Equivalents	(44)	74	21
Cash and Cash Equivalents at Beginning of the Year	112	38	17
Cash and Cash Equivalents at End of the Year	68	112	38
Non-Guarantor Subsidiaries [Member]
Cash Flows from Operating Activities:
TOTAL CASH FLOWS FROM OPERATING ACTIVITIES	841	581	718
Cash Flows from Investing Activities:
Capital expenditures	(892)	(815)	(581)
Asset dispositions	11	8	69
Asset acquistions		(1)
Government grants received		95
Capital contributions and loans	(150)	(17)	(136)
Capital redemptions and loans	200	38	134
Increase in short term securities	(29)	(4)
Other transactions	12	(24)	(11)
TOTAL CASH FLOWS FROM INVESTING ACTIVITIES	(848)	(720)	(525)
Cash Flows from Financing Activities:
Short term debt and overdrafts incurred	77	179	80
Short term debt and overdrafts paid	(156)	(138)	(68)
Long term debt incurred	2,731	2,771	756
Long term debt paid	(2,955)	(1,900)	(581)
Proceeds from issuance of preferred stock		0
Preferred stock dividends paid	0	0
Common stock issued	0	0	0
Capital contributions and loans	218	132	136
Capital redemptions and loans	(81)	(38)	(150)
Intercompany dividends paid	(123)	(162)	(119)
Transactions with minority interests in subsidiaries	(54)	(21)	(13)
Debt related costs and other transactions	(1)	(19)	0
TOTAL CASH FLOWS FROM FINANCING ACTIVITIES	(344)	804	41
Effect of exchange rate changes on cash and cash equivalents	18	(96)	(162)
Net Change in Cash and Cash Equivalents	(333)	569	72
Cash and Cash Equivalents at Beginning of the Year	1,744	1,175	1,103
Cash and Cash Equivalents at End of the Year	1,411	1,744	1,175
Consolidating Entries and Eliminations [Member]
Cash Flows from Operating Activities:
TOTAL CASH FLOWS FROM OPERATING ACTIVITIES	(135)	(172)	(117)
Cash Flows from Investing Activities:
Capital expenditures	6	3	(9)
Asset dispositions	0	(1)	0
Asset acquistions		1
Government grants received		0
Capital contributions and loans	368	31	136
Capital redemptions and loans	(281)	(38)	(150)
Increase in short term securities	0	0
Other transactions	0	0	0
TOTAL CASH FLOWS FROM INVESTING ACTIVITIES	93	(4)	(23)
Cash Flows from Financing Activities:
Short term debt and overdrafts incurred	0	0	0
Short term debt and overdrafts paid	0	0	0
Long term debt incurred	0	0	0
Long term debt paid	0	0	0
Proceeds from issuance of preferred stock		0
Preferred stock dividends paid	0	0
Common stock issued	0	0	0
Capital contributions and loans	(368)	(31)	(136)
Capital redemptions and loans	281	38	150
Intercompany dividends paid	129	169	126
Transactions with minority interests in subsidiaries	0	0	0
Debt related costs and other transactions	0	0	0
TOTAL CASH FLOWS FROM FINANCING ACTIVITIES	42	176	140
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Net Change in Cash and Cash Equivalents	0	0	0
Cash and Cash Equivalents at Beginning of the Year	0	0	0
Cash and Cash Equivalents at End of the Year	$ 0	$ 0	$ 0