Consolidating Financial Information (Details Textuals) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2013
Consolidating Financial Information (Textuals) [Abstract]
Percentage Of Ownership Over Guarantor Subsidiaries		100.00%
Guarantor Obligations, Related Party Disclosure		The notes are fully and unconditionally guaranteed on a joint and several basis by each guarantor subsidiary.
Consolidating Financial Information Restrictions on Remittance of Funds		Certain non-guarantor subsidiaries of the Parent Company are limited in their ability to remit funds to it by means of dividends, advances or loans due to required foreign government and/or currency exchange board approvals or limitations in credit agreements or other debt instruments of those subsidiaries.
Senior Notes 8 Point 25 Percent
Additional Consolidating Financial Information (Textuals) [Abstract]
Issuance of aggregate principal amount of senior notes	$ 1,000	$ 1,000
Interest on Notes	8.25%	8.25%
Debt Instrument, Maturity Date		Aug. 15, 2020
8.75% Notes due 2020
Additional Consolidating Financial Information (Textuals) [Abstract]
Issuance of aggregate principal amount of senior notes	282	282
Interest on Notes	8.75%	8.75%
Debt Instrument, Maturity Date		Aug. 15, 2020
6.5% Notes due 2021
Additional Consolidating Financial Information (Textuals) [Abstract]
Issuance of aggregate principal amount of senior notes	900	900
Interest on Notes	6.50%	6.50%
Debt Instrument, Maturity Date		Mar. 01, 2021
7.0% Notes Due In 2022
Additional Consolidating Financial Information (Textuals) [Abstract]
Issuance of aggregate principal amount of senior notes	700	700
Interest on Notes	7.00%	7.00%
Debt Instrument, Maturity Date		May 15, 2022
Cash Flows from Operating Activities | Non-Guarantor Subsidiaries
Consolidating Financial Information (Textuals) [Abstract]
Effect of Change on Prior Period Condensed Consolidating Statement of Cash Flows		62
Cash Flows from Operating Activities | Parent Company
Consolidating Financial Information (Textuals) [Abstract]
Effect of Change on Prior Period Condensed Consolidating Statement of Cash Flows		(150)
Cash Flows from Operating Activities | Consolidating Entries and Eliminations
Consolidating Financial Information (Textuals) [Abstract]
Effect of Change on Prior Period Condensed Consolidating Statement of Cash Flows		88
Cash Flows from Investing Activities | Non-Guarantor Subsidiaries
Consolidating Financial Information (Textuals) [Abstract]
Effect of Change on Prior Period Condensed Consolidating Statement of Cash Flows		(112)
Cash Flows from Investing Activities | Parent Company
Consolidating Financial Information (Textuals) [Abstract]
Effect of Change on Prior Period Condensed Consolidating Statement of Cash Flows		(36)
Cash Flows from Investing Activities | Consolidating Entries and Eliminations
Consolidating Financial Information (Textuals) [Abstract]
Effect of Change on Prior Period Condensed Consolidating Statement of Cash Flows		148
Cash Flows from Financing Activities | Non-Guarantor Subsidiaries
Consolidating Financial Information (Textuals) [Abstract]
Effect of Change on Prior Period Condensed Consolidating Statement of Cash Flows		50
Cash Flows from Financing Activities | Parent Company
Consolidating Financial Information (Textuals) [Abstract]
Effect of Change on Prior Period Condensed Consolidating Statement of Cash Flows		186
Cash Flows from Financing Activities | Consolidating Entries and Eliminations
Consolidating Financial Information (Textuals) [Abstract]
Effect of Change on Prior Period Condensed Consolidating Statement of Cash Flows		(236)
Investments in Subsidiaries | Non-Guarantor Subsidiaries
Consolidating Financial Information (Textuals) [Abstract]
Effect of Change on Prior Period Condensed Consolidating Balance Sheet	(4,576)	(4,576)
Total Shareholders' Equity | Non-Guarantor Subsidiaries
Consolidating Financial Information (Textuals) [Abstract]
Effect of Change on Prior Period Condensed Consolidating Balance Sheet	4,576	4,576
Sales | Non-Guarantor Subsidiaries
Consolidating Financial Information (Textuals) [Abstract]
Effect of Change on Prior Period Consolidating Statement of Operations	2,060	4,657
Cost of Sales | Non-Guarantor Subsidiaries
Consolidating Financial Information (Textuals) [Abstract]
Effect of Change on Prior Period Consolidating Statement of Operations	(2,060)	(4,657)
Interest Expense | Non-Guarantor Subsidiaries
Consolidating Financial Information (Textuals) [Abstract]
Effect of Change on Prior Period Consolidating Statement of Operations	(38)	(75)
Other Expense | Non-Guarantor Subsidiaries
Consolidating Financial Information (Textuals) [Abstract]
Effect of Change on Prior Period Consolidating Statement of Operations	$ 38	$ 75