Discontinued operations - Financial Information Balance sheet (Details) $ in Millions	Dec. 31, 2019 USD ($)
Assets
Current assets held for sale	$ 751
Liabilities
Current liabilities held for sale	230
MDA business | Discontinued operations
Assets
Cash and cash equivalents	45
Trade and other receivables, net	168
Deferred tax assets	117
Property, plant and equipment	29
Intangible assets	27
Goodwill	310
Other assets	55
Current assets held for sale	751
Liabilities
Accounts payable	88
Accrued liabilities	18
Accrued compensation and benefits	21
Contract liabilities	29
Pension and other postretirement benefit liabilities	21
Other liabilities	53
Current liabilities held for sale	$ 230