Other Assets

6 Months Ended

Jun. 30, 2011

Other Assets [Abstract]

OTHER ASSETS

12.   OTHER ASSETS

An analysis of other assets is as follows:

	June 30,		December 31,
	2011		2010
	(millions)
Other current assets
Unamortized cash retention awards	$	148	$	125
Prepayments and accrued income		58		73
Derivatives		17		17
Debt issuance costs		8		8
Income tax receivable		42		69
Other receivables		54		48
Total other current assets	$	327	$	340
Other non-current assets
Unamortized cash retention awards	$	145	$	48
Deferred compensation plan assets		115		114
Prepayments and accrued income		17		—
Debt issuance costs		19		27
Derivatives		33		30
Income taxes receivable		11		—
Other receivables		25		14
Total other non-current assets	$	365	$	233
Total other assets	$	692	$	573