Debt (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011		Dec. 31, 2010
Debt Instrument [Line Items]
Long-term Debt	$ 10,425		$ 10,256
Debt, Current	104		152
Debt, net of current portion	10,321		10,104
Corporate Debt Securities [Member]
Debt Instrument [Line Items]
Long-term Debt	5,892	[1]	4,691	[1]
First Lien Notes 2017 [Member]
Debt Instrument [Line Items]
Long-term Debt	1,200		1,200
Debt Instrument, Interest Rate, Effective Percentage	7.50%	[2]	7.50%	[2]
First Lien Notes 2019 [Member]
Debt Instrument [Line Items]
Long-term Debt	400		400
Debt Instrument, Interest Rate, Effective Percentage	8.20%	[2]	8.20%	[2]
First Lien Notes 2020 [Member]
Debt Instrument [Line Items]
Long-term Debt	1,092		1,091
Debt Instrument, Interest Rate, Effective Percentage	8.10%	[2]	8.10%	[2]
First Lien Notes 2021 [Member]
Debt Instrument [Line Items]
Long-term Debt	2,000		2,000
Debt Instrument, Interest Rate, Effective Percentage	7.70%	[2]	7.70%	[2]
First Lien Notes 2023 [Member]
Debt Instrument [Line Items]
Long-term Debt	1,200	[3]	0	[3]
Debt Instrument, Interest Rate, Effective Percentage	8.00%	[2]	0.00%	[2]
Debt Instrument, Interest Rate, Stated Percentage	7.875%
Total First Lien Notes [Member]
Debt Instrument [Line Items]
Long-term Debt	5,892		4,691
Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Long-term Debt	1,691	[4],[5]	1,922	[4],[5]
Loans Payable [Member]
Debt Instrument [Line Items]
Long-term Debt	1,646	[4],[6]	0	[4],[6]
Line of Credit [Member]
Debt Instrument [Line Items]
Long-term Debt	0	[1]	1,184	[1]
Secured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt	972		965
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Long-term Debt	224		236
NDH Project Debt Credit Facility [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 0	[6]	$ 1,258	[6]

[1] On January 14, 2011, we repaid and terminated the First Lien Credit Facility with the issuance of the 2023 First Lien Notes as discussed below.

[2] Our weighted average interest rate calculation includes the amortization of deferred financing costs and debt discount.

[3] On January 14, 2011, we issued $1.2 billion in aggregate principal amount of 7.875% senior secured notes due 2023 in a private placement. Interest on the 2023 First Lien Notes is payable semi-annually on January 15 and July 15 of each year, beginning on July 15, 2011. The 2023 First Lien Notes will mature on January 15, 2023.

[4] On June 17, 2011, we repaid approximately $340 million of project debt with the proceeds received from $360 million in borrowings under the New Term Loan as further described below.

[5] On June 24, 2011, we closed on the approximately $845 million Russell City Project Debt to fund the construction of Russell City and on August 23, 2011, we closed on the $373 million Los Esteros Project Debt to fund the upgrade of our Los Esteros Critical Energy Facility, both further described below.

[6] On March 9, 2011, we borrowed $1.3 billion under the Term Loan and repaid and terminated the NDH Project Debt as discussed below.