Supplemental Cash Flow Information (Noble-Cayman) (Tables)

12 Months Ended

Dec. 31, 2011

Operating Capital [Line Items]

Effect of changes in other assets and liabilities on cash flows from operating activities

The net effect of changes in other assets and liabilities on cash flows from operating activities is as follows:

	December 31,
	2011			2010			2009
Accounts receivable	$	(283,268	)	$	343,844		$	(48,839	)
Other current assets		(51,409	)		(77,090	)		(17,723	)
Other assets		(5,077	)		(293	)		(14,050	)
Accounts payable		(12,502	)		(43,938	)		11,646
Other current liabilities		72,861			97,041			(1,979	)
Other liabilities		87,737			28,030			15,006
	$	(191,658	)	$	347,594		$	(55,939	)

Additional cash flow information

Additional cash flow information is as follows:

	Year Ended December 31,
	2011		2010		2009
Cash paid during the period for:
Interest, net of amounts capitalized	$	46,180	$	4,044	$	1,618
Income taxes (net of refunds)	$	128,162	$	194,423	$	332,287

Noble-Cayman [Member]

Operating Capital [Line Items]

Effect of changes in other assets and liabilities on cash flows from operating activities

The net effect of changes in other assets and liabilities on cash flows from operating activities is as follows:

	December 31,
	2011			2010			2009
Accounts receivable	$	(283,268	)	$	343,844		$	(48,839	)
Other current assets		(49,044	)		(75,737	)		(16,686	)
Other assets		(8,056	)		(493	)		(13,935	)
Accounts payable		(12,524	)		(44,105	)		11,558
Other current liabilities		67,238			90,864			(10,318	)
Other liabilities		87,711			28,258			14,803
	$	(197,943	)	$	342,631		$	(63,417	)

Additional cash flow information

Additional cash flow information is as follows:

	Year Ended December 31,
	2011		2010		2009
Cash paid during the period for:
Interest, net of amounts capitalized	$	46,180	$	4,044	$	1,618
Income taxes (net of refunds)	$	128,162	$	194,423	$	332,287