Restructuring Charges and Other Costs Associated with Acquisitions and Cost-Reduction/Productivity Initiatives - Restructuring Benefits and Charges (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021		Dec. 31, 2020		Dec. 31, 2019
Restructuring Reserve [Roll Forward]
Beginning balance		$ 21	[1]	$ 45		$ 45
Provision/(benefit)		33		8		33
Utilization and other	[2]	(16)		(32)		(33)
Ending balance		25	[1]	21	[1]	45
Restructuring Reserve, Settled without Cash		(13)
Other current liabilities
Restructuring Reserve [Roll Forward]
Accrued expenses		14		6
Other non-current liabilities
Restructuring Reserve [Roll Forward]
Other noncurrent liabilities		11		15
Employee Severance
Restructuring Reserve [Roll Forward]
Beginning balance		21	[1]	45		45
Provision/(benefit)	[3],[4]	17		8		33
Utilization and other	[2]	(15)		(32)		(33)
Ending balance		23	[1]	21	[1]	45
Restructuring Reserve, Settled without Cash		0
Exit Costs
Restructuring Reserve [Roll Forward]
Beginning balance		0	[1]	0		0
Provision/(benefit)		3		0		0
Utilization and other	[2]	(1)		0		0
Ending balance		2	[1]	$ 0	[1]	$ 0
Restructuring Reserve, Settled without Cash		0
Facility Closing
Restructuring Reserve [Roll Forward]
Provision/(benefit)		13
Restructuring Reserve, Settled without Cash		(13)
Employee Severance and Exit Costs
Restructuring Reserve [Roll Forward]
Contractual obligation		16
Payments expected in 2022		14
Payments expected thereafter		$ 2

[1] At December 31, 2021 and 2020, included in Accrued Expenses ($14 million and $6 million, respectively) and Other noncurrent liabilities ($11 million and $15 million, respectively).

[2] Includes adjustments for foreign currency translation.

[3] The restructuring charges are associated with the following: •For the year ended December 31, 2021, Manufacturing/research/corporate of $21 million and International of $12 million. •For the year ended December 31, 2020, Manufacturing/research/corporate of $8 million. •For the year ended December 31, 2019, Manufacturing/research/corporate of $31 million and International of $2 million.

[4] The restructuring charges for the year ended December 31, 2021 are primarily related to the realignment of our international operations and other cost-reduction and productivity initiatives.     The restructuring charges for the year ended December 31, 2020 are primarily related to CEO transition-related costs and other cost-reduction and productivity initiatives.     The restructuring charges for the year ended December 31, 2019 are primarily related to the acquisition of Abaxis and CEO transition-related costs.