CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 1,008,879	$ 1,024,008
Receivables - trade and other	496,356	423,839
Prepaid expenses and other current assets	55,258	55,121
Deferred tax assets - net	18,876	26,628
Assets of discontinued operations	23,687	22,954
Total current assets	1,603,056	1,552,550
PROPERTY, PLANT AND EQUIPMENT:
Drilling equipment	6,949,524	6,764,046
Construction in progress	942,606	756,308
Other property and equipment	151,699	140,739
Property, plant and equipment - gross	8,043,829	7,661,093
Less accumulated depreciation and amortization	1,746,007	1,589,364
Property, plant and equipment - net	6,297,822	6,071,729
Other assets	63,407	75,208
TOTAL ASSETS	7,964,285	7,699,487
CURRENT LIABILITIES:
Accounts payable - trade	95,568	83,004
Deferred revenues	67,700	52,340
Accrued pension and other postretirement benefits	5,681	23,392
Accrued compensation and related employee costs	49,513	43,732
Accrued income taxes	4,004	26,088
Accrued interest	26,692	27,711
Other current liabilities	10,033	16,572
Liabilities of discontinued operations	20,122	21,255
Total current liabilities	279,313	294,094
Long-term debt	2,008,926	2,009,598
Other liabilities	419,639	390,199
Deferred income taxes - net	488,822	473,872
Commitments and contingent liabilities (Note 4)	0	0
SHAREHOLDERS' EQUITY:
Class A Ordinary Shares, $0.125 par value, 124,778,407 and 124,740,407 shares issued at September 30, 2013, and December 31, 2012, respectively	15,597	15,593
Additional paid-in capital	1,398,181	1,372,135
Retained earnings	3,569,842	3,366,964
Cost of 541,837 and 529,387 treasury shares at September 30, 2013, and December 31, 2012, respectively	(5,939)	(1,886)
Accumulated other comprehensive loss	(210,096)	(221,082)
Total shareholders' equity	4,767,585	4,531,724
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 7,964,285	$ 7,699,487