Revenues (Tables)

6 Months Ended

Jun. 30, 2020

Revenues

Schedule of revenue disaggregation

	Three months ended June 30, 2020										Three months ended June 30, 2019
	U.S.		Norway		Brazil		Other		Total		U.S.		Norway		Brazil		Other		Total
Ultra-deepwater floaters	$	440	$	—	$	57	$	139	$	636	$	309	$	—	$	28	$	149	$	486
Harsh environment floaters		—		207		—		86		293		—		173		—		78		251
Deepwater floaters		—		—		—		—		—		—		—		—		1		1
Midwater floaters		—		—		—		1		1		—		—		—		20		20
Total revenues	$	440	$	207	$	57	$	226	$	930	$	309	$	173	$	28	$	248	$	758

	Six months ended June 30, 2020										Six months ended June 30, 2019
	U.S.		Norway		Brazil		Other		Total		U.S.		Norway		Brazil		Other		Total
Ultra-deepwater floaters	$	727	$	—	$	116	$	321	$	1,164	$	623	$	—	$	54	$	285	$	962
Harsh environment floaters		—		414		—		99		513		—		354		—		155		509
Deepwater floaters		—		—		—		—		—		—		—		6		1		7
Midwater floaters		—		—		—		12		12		—		—		—		34		34
Total revenues	$	727	$	414	$	116	$	432	$	1,689	$	623	$	354	$	60	$	475	$	1,512

Schedule of contract balances and changes

	June 30,		December 31,
	2020		2019
Deferred contract revenues, recorded in other current liabilities	$	149	$	100
Deferred contract revenues, recorded in other long-term liabilities		370		429
Total contract liabilities	$	519	$	529

Significant changes in contract liabilities were as follows (in millions):

	Six months ended
	June 30,
	2020		2019
Total contract liabilities, beginning of period	$	529	$	486
Decrease due to recognition of revenues for goods and services		(108)		(58)
Increase due to goods and services transferred over time		98		62
Total contract liabilities, end of period	$	519	$	490