Acquisitions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Purchase price, net of cash acquired	$ 464	$ 187	$ 130
Goodwill	2,496	$ 2,374
Industries Centers [Member]
Business Acquisition [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent		51.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners		49.00%
Biopolis SL [Member]
Business Acquisition [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent		89.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners		11.00%
Harvest Innovations [Member]
Business Acquisition [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent			90.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners			10.00%
Purchase of noncontrolling interest, period after acquisition (in years)			2 years
Payments for Repurchase of Redeemable Noncontrolling Interest	8
Medsofts [Member]
Business Acquisition [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent			50.00%
End period when fixed multiple of EBITDA is calculated (in years)			3 years
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners			50.00%
Period when fixed multiple of EBITDA is calculated (in months)			12 months
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross	506	$ 194	$ 141
Cash Acquired from Acquisition	42	7	11
Purchase price, net of cash acquired	464	187	130
Purchase price allocated to working capital	30	19	15
Purchase price allocated to property, plant and equipment	133	116	23
Goodwill	187	33	72
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	132	47	41
Purchase price allocated to other non-current assets	6	8	34
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt		(8)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent	(15)
Purchase price allocated to long-term liabilities		(16)	(17)
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value	$ (9)	$ (12)	$ (38)