Other Current Assets

3 Months Ended

Mar. 31, 2012

Other Current Assets [Abstract]

Other Current Assets

5. Other Current Assets

Other current assets consisted of:

(in $ millions)	March 31, 2012		December 31, 2011
Development advances		69		63
Sales and use tax receivables		54		49
Prepaid expenses		17		15
Assets held for sale		16		16
Derivative assets		7		2
Other		38		23
		201		168

Assets held for sale consisted of land and buildings expected to be sold within the next twelve months.