CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
CURRENT ASSETS:
Cash and cash equivalents	$ 1,037.5	$ 484.2
Receivables - trade and other	440.5	410.5
Prepaid expenses and other current assets	28.6	26.6
Total current assets	1,506.6	921.3
PROPERTY AND EQUIPMENT:
Drilling equipment	8,955.8	8,930.4
Other property and equipment	134.6	137.7
Property and equipment - gross	9,090.4	9,068.1
Less accumulated depreciation and amortization	1,947.1	1,662.3
Property and equipment - net	7,143.3	7,405.8
Other assets	15.1	20.2
TOTAL ASSETS	8,665.0	8,347.3
CURRENT LIABILITIES:
Current portion of long-term debt	357.1	0.0
Accounts payable - trade	82.2	109.6
Deferred revenues	78.4	33.1
Accrued liabilities	160.1	186.0
Total current liabilities	677.8	328.7
Long-term debt, less current portion	2,288.5	2,692.4
Other liabilities	356.7	357.9
Deferred income taxes - net	184.8	195.8
Commitments and contingent liabilities (Note 4)
SHAREHOLDERS' EQUITY:
Class A Ordinary Shares, $0.125 par value, 126.0 and 125.9 shares issued at September 30, 2016, and December 31, 2015	15.7	15.7
Additional paid-in capital	1,467.9	1,458.5
Retained earnings	3,854.8	3,509.8
Cost of 0.6 and 1.1 treasury shares at September 30, 2016, and December 31, 2015, respectively	(7.1)	(12.2)
Accumulated other comprehensive loss	(174.1)	(199.3)
Total shareholders' equity	5,157.2	4,772.5
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 8,665.0	$ 8,347.3