Revenue

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

We disaggregate our revenue from customers by type of service, geographic destination and contract type for each of our segments, as we believe it best depicts how the nature, amount, timing and uncertainty of our revenue and cash flows are affected by economic factors. See details in the tables below.

Revenue by Service/Product line was as follows:



	Year Ended
	December 31,
Dollars in millions	2019		2018
Government Solutions
Space and Mission Solutions	$	874	$	651
Engineering	1,158		1,141
Logistics	1,893		1,665
Subtotal	3,925		3,457

Technology Solutions	374		297

Energy Solutions
EPC Delivery Solutions	438		432
Services and Consulting	901		725
Subtotal	1,339		1,157

Non-strategic business	1		2

Total net revenue	$	5,639	$	4,913

Government Solutions revenue earned from key U.S. Government customers including U.S. DoD agencies and NASA was $3.0 billion and $2.6 billion for the years ended December 31, 2019 and 2018, respectively. Government Solutions revenue earned from non-U.S. Government customers including the U.K. MoD, the Australian Defence Force and others was $911 million and $847 million for the years ended December 31, 2019 and 2018, respectively.

Revenue by geographic destination was as follows:



	Year Ended December 31, 2019
Dollars in millions	Government Solutions		Technology Solutions		Energy Solutions		Non-strategic Business		Total
United States	$	2,110	$	38	$	556	$	1	$	2,705
Middle East	795		15		217		—		1,027
Europe	796		71		191		—		1,058
Australia	93		1		194		—		288
Canada	1		1		37		—		39
Africa	76		31		90		—		197
Asia	—		211		3		—		214
Other countries	54		6		51		—		111
Total net revenue	$	3,925	$	374	$	1,339	$	1	$	5,639



	Year Ended December 31, 2018
Dollars in millions	Government Solutions		Technology Solutions		Energy Solutions		Non-strategic Business		Total
United States	$	1,767	$	22	$	469	$	2	$	2,260
Middle East	735		14		135		—		884
Europe	766		50		173		—		989
Australia	60		1		268		—		329
Canada	1		2		18		—		21
Africa	77		25		31		—		133
Asia	—		177		13		—		190
Other countries	51		6		50		—		107
Total net revenue	$	3,457	$	297	$	1,157	$	2	$	4,913

Many of our contracts contain both fixed price and cost reimbursable components. We define contract type based on the component that represents the majority of the contract. Revenue by contract type was as follows:



	Year Ended December 31, 2019
Dollars in millions	Government Solutions		Technology Solutions		Energy Solutions		Non-strategic Business		Total
Fixed Price	$	1,111	$	367	$	240	$	1	$	1,719
Cost Reimbursable	2,814		7		1,099		—		3,920
Total net revenue	$	3,925	$	374	$	1,339	$	1	$	5,639



	Year Ended December 31, 2018
Dollars in millions	Government Solutions		Technology Solutions		Energy Solutions		Non-strategic Business		Total
Fixed Price	$	1,031	$	288	$	187	$	2	$	1,508
Cost Reimbursable	2,426		9		970		—		3,405
Total net revenue	$	3,457	$	297	$	1,157	$	2	$	4,913

We recognized revenue of $15 million from performance obligations satisfied in previous periods for the year ended December 31, 2019.

On December 31, 2019, we had $11.4 billion of transaction price allocated to remaining performance obligations. We expect to recognize approximately 34% of our remaining performance obligations as revenue within one year, 33% in years two through five, and 33% thereafter. Revenue associated with our remaining performance obligations to be recognized beyond one year includes performance obligations related to Aspire Defence and Fasttrax projects, which have contract terms extending through 2041 and 2023, respectively. The balance of remaining performance obligations does not include variable consideration that was determined to be constrained as of December 31, 2019.