Business Combinations (Tables)

12 Months Ended

Dec. 31, 2019

Business Combination

Schedule of unaudited pro forma combined operating results

	Years ended December 31,
	2018		2017
Contract drilling revenues	$	3,373	$	4,386
Net loss		(2,124)		(3,174)
Per share loss - basic and diluted		(3.47)		(5.29)

Ocean Rig

Business Combination

Schedule of consideration transferred

	Total
Consideration transferred
Aggregate fair value of shares issued as partial consideration for Ocean Rig shares	$	1,377
Aggregate cash paid as partial consideration for Ocean Rig shares		1,168
Total consideration transferred in business combination	$	2,545

Schedule of assets acquired and liabilities assumed

	Total
Assets acquired
Cash and cash equivalents	$	152
Accounts receivable		76
Property and equipment		2,205
Drilling contract intangible assets		275
Other assets		115
Liabilities assumed
Accounts payable and other current liabilities		71
Construction contract intangible liabilities		132
Other long-term liabilities		54
Net assets acquired	$	2,566

Songa

Business Combination

Schedule of consideration transferred

	Total
Consideration transferred
Aggregate fair value of shares issued as partial consideration for Songa shares	$	735
Aggregate fair value of Exchangeable Bonds issued as partial consideration for Songa shares		675
Consideration transferred to Songa shareholders		1,410
Aggregate fair value of Exchangeable Bonds issued for settlement of certain Songa indebtedness		351
Total consideration transferred in business combination	$	1,761

Schedule of assets acquired and liabilities assumed

	Total
Assets acquired
Cash and cash equivalents	$	113
Accounts receivable		115
Other current assets		80
Property and equipment		2,414
Goodwill		462
Contract intangible assets		632
Liabilities assumed
Accounts payable and other current liabilities		178
Debt		1,768
Other long-term liabilities		76
Net assets acquired		1,794
Noncontrolling interest in business combination		33
Controlling interest acquired in business combination	$	1,761