Revenues - Additional Information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Revenue From Contract With Customer [Line Items]
Net trade accounts receivable	$ 1,800	$ 1,800
Contract assets	146	131
Contract with customer, liability	63	12
Accounts and Other Receivables, Net
Revenue From Contract With Customer [Line Items]
Contract assets, current	81	63
Other non-current assets
Revenue From Contract With Customer [Line Items]
Contract assets, noncurrent	65	68
Other non-current liabilities
Revenue From Contract With Customer [Line Items]
Contract liability, noncurrent	32	12
Accounts payable and accrued liabilities
Revenue From Contract With Customer [Line Items]
Contract with customer, liability, current	31
Consumable Medical Products
Revenue From Contract With Customer [Line Items]
Contract assets, current		52
Manufacturing Arrangements
Revenue From Contract With Customer [Line Items]
Contract assets	58	36
Software Arrangements
Revenue From Contract With Customer [Line Items]
Contract assets, current	39	43
Bundled Equipment
Revenue From Contract With Customer [Line Items]
Contract assets	$ 49
Contract assets, current		$ 52
Minimum
Revenue From Contract With Customer [Line Items]
Global payment terms	30 days
Minimum | Consumable Medical Products
Revenue From Contract With Customer [Line Items]
Revenue recognized contract period	1 year
Minimum | Software Arrangements
Revenue From Contract With Customer [Line Items]
Revenue recognized contract period	1 year
Maximum
Revenue From Contract With Customer [Line Items]
Global payment terms	90 days
Maximum | Consumable Medical Products
Revenue From Contract With Customer [Line Items]
Revenue recognized contract period	7 years
Maximum | Manufacturing Arrangements
Revenue From Contract With Customer [Line Items]
Revenue recognized contract period	90 days
Maximum | Software Arrangements
Revenue From Contract With Customer [Line Items]
Revenue recognized contract period	5 years