Contract and Other Deferred Assets (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contract assets (revenue in excess of billings)	$ 1,638		$ 1,700
Deferred inventory costs	142		130
Non-recurring engineering costs	46		51
Contract and other deferred assets	1,826		1,881
Revenue recognized from performance obligations satisfied in previous periods	6	$ 7
Long-term product service agreements
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contract assets (revenue in excess of billings)	589		603
Long-term equipment contracts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contract assets (revenue in excess of billings)	$ 1,049		$ 1,097