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Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
CURRENT ASSETS
Cash and cash equivalents	$ 298.4	$ 275.1
Short-term Investments	245.0	329.0
Accounts receivable, net	313.7	344.7
Other	354.8	360.9
Total current assets	1,211.9	1,309.7
PROPERTY AND EQUIPMENT, AT COST	15,368.6	15,517.0
Less accumulated depreciation	2,859.7	2,900.8
Property and equipment, net	12,508.9	12,616.2
OTHER ASSETS, NET	142.2	97.8
TOTAL ASSETS	13,863.0	14,023.7
CURRENT LIABILITIES
Accounts payable - trade	214.2	210.5
Accrued liabilities and other	302.7	318.0
Total current liabilities	516.9	528.5
LONG-TERM DEBT	5,018.5	5,010.4
OTHER LIABILITIES	427.3	396.0
COMMITMENTS AND CONTINGENCIES
ENSCO SHAREHOLDERS' EQUITY
Additional paid-in capital	7,230.2	7,225.0
Retained earnings	679.3	874.2
Accumulated other comprehensive income	19.7	18.2
Treasury shares, at cost	(74.9)	(72.2)
Total Ensco shareholders' equity	7,900.5	8,091.4
NONCONTROLLING INTERESTS	(0.2)	(2.6)
Total equity	7,900.3	8,088.8
Total liabilities and shareholders' equity	13,863.0	14,023.7
Class A ordinary shares, U.S. [Member]
ENSCO SHAREHOLDERS' EQUITY
Common shares, value	46.1	46.1
Common Class B, Par Value In GBP [Member]
ENSCO SHAREHOLDERS' EQUITY
Common shares, value	$ 0.1	$ 0.1

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