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Segment Information (Tables)
 12 Months Ended
Dec. 31, 2017
Segment Reporting Information, Revenue for Reportable Segment [Abstract]  
Schedule Of Segment Reporting Information
Year Ended December 31, 2017
 
Floaters
 
Jackups
 
Other
 
Operating Segments Total
 
Reconciling Items
 
Consolidated Total
Revenues
$
1,143.5

 
$
640.3

 
$
59.2

 
$
1,843.0

 
$
—

 
$
1,843.0

Operating expenses
 
 
 
 
 
 
 
 
 
 
 
  Contract drilling
  (exclusive of depreciation)
624.2

 
512.1

 
53.2

 
1,189.5

 
—

 
1,189.5

  Loss on impairment
174.7

 
8.2

 
—

 
182.9

 
—

 
182.9

  Depreciation
297.4

 
131.5

 
—

 
428.9

 
15.9

 
444.8

  General and administrative
—

 
—

 
—

 
—

 
157.8

 
157.8

Operating income
$
47.2

 
$
(11.5
)
 
$
6.0

 
$
41.7

 
$
(173.7
)
 
$
(132.0
)
Property and equipment, net
$
9,650.9

 
$
3,177.6

 
$
—

 
$
12,828.5

 
$
45.2

 
$
12,873.7

Capital expenditures
$
470.3

 
$
62.1

 
$
—

 
$
532.4

 
$
4.3

 
$
536.7


Year Ended December 31, 2016
 
Floaters
 
Jackups
 
Other
 
Operating Segments Total
 
Reconciling Items
 
Consolidated Total
Revenues
$
1,771.1

 
$
929.5

 
$
75.8

 
$
2,776.4

 
$
—

 
$
2,776.4

Operating expenses
 
 
 
 
 
 
 
 
 
 
 
  Contract drilling
  (exclusive of depreciation)
725.0

 
516.8

 
59.2

 
1,301.0

 
—

 
1,301.0

  Depreciation
304.1

 
123.7

 
—

 
427.8

 
17.5

 
445.3

  General and administrative
—

 
—

 
—

 
—

 
100.8

 
100.8

Operating income (loss)
$
742.0

 
$
289.0

 
$
16.6

 
$
1,047.6

 
$
(118.3
)
 
$
929.3

Property and equipment, net
$
8,300.4

 
$
2,561.0

 
$
—

 
$
10,861.4

 
$
57.9

 
$
10,919.3

Capital expenditures
$
110.3

 
$
206.2

 
$
—

 
$
316.5

 
$
5.7

 
$
322.2


Year Ended December 31, 2015
 
Floaters
 
Jackups
 
Other
 
Operating Segments Total
 
Reconciling Items
 
Consolidated Total
Revenues
$
2,466.0

 
$
1,445.6

 
$
151.8

 
$
4,063.4

 
$
—

 
$
4,063.4

Operating expenses
 
 
 
 
 
 
 
 
 
 
 
  Contract drilling
  (exclusive of depreciation)
1,052.8

 
693.5

 
123.3

 
1,869.6

 
—

 
1,869.6

  Loss on impairment
1,778.4

 
968.0

 


 
2,746.4

 
—

 
2,746.4

  Depreciation
382.4

 
175.7

 
—

 
558.1

 
14.4

 
572.5

  General and administrative
—

 
—

 
—

 
—

 
118.4

 
118.4

Operating income (loss)
$
(747.6
)
 
$
(391.6
)
 
$
28.5

 
$
(1,110.7
)
 
$
(132.8
)
 
$
(1,243.5
)
Property and equipment, net
$
8,535.6

 
$
2,481.2

 
$
—

 
$
11,016.8

 
$
71.0

 
$
11,087.8

Capital expenditures
$
1,176.6

 
$
434.7

 
$
—

 
$
1,611.3

 
$
8.2

 
$
1,619.5
Schedule Of Geographic Distribution Of Rigs By Segment
As of December 31, 2017, the geographic distribution of our drilling rigs by operating segment was as follows:
 
Floaters

 
Jackups

 
Total

North & South America
8
 
6
 
14
Europe & the Mediterranean
6
 
12
 
18
Middle East & Africa
4
 
11
 
15
Asia & Pacific Rim
6
 
8
 
14
Asia & Pacific Rim (under construction)
2
 
1
 
3
Held-For-Sale
1
 
—
 
1
Total
27
 
38
 
65
Schedule Of Revenues And Long-Lived Assets By Geographical Segment
Information by country for those countries that account for more than 10% of our long-lived assets as well as the United Kingdom, our country of domicile, was as follows (in millions):
 
Long-lived Assets
 
2017
 
2016
 
2015
Singapore
$
2,859.3

 
$
1,388.4

 
$
832.9

United States
2,764.9

 
2,898.3

 
4,731.8

Spain
2,004.2

 
2,334.5

 
757.0

Angola
795.9

 
821.7

 
1,471.1

United Kingdom
609.4

 
409.0

 
462.4

Other countries
3,840.0

 
3,067.4

 
2,832.6

Total
$
12,873.7

 
$
10,919.3

 
$
11,087.8