Segment Information (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2012	Mar. 31, 2011
Reconciliation of (loss) income before income taxes to segment profit (loss)
Income before income taxes	$ 124	$ 85
Less: net income attributable to noncontrolling interest	10	3
Segment profit	$ 114	$ 82

The portion of net Income or Loss attributable to the noncontrolling interest (if any) deducted in order to derive the portion attributable to the parent.

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+ Details