Revenue - Contract assets and liabilities (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Contract assets and contract liabilities
Contract Liabilities	$ 237	$ 275
Earth intelligence
Contract assets and contract liabilities
Contract Liabilities	60	130
Earth intelligence | Enhanced View contract
Contract assets and contract liabilities
Contract Liabilities	20	78
Increase in contract liability due to imputed interest on advance payments	2
Revenue recognized	60
Space Infrastructure
Contract assets and contract liabilities
Contract Liabilities	$ 177	$ 145