Segment Information Selected Statement of Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020		Sep. 30, 2019
Segment Reporting Information [Line Items]
Revenue	$ 1,786	$ 1,584	$ 4,868		$ 4,586
Cost of Sales	546	479	1,456		1,462
Other (income)/deductions—net	0	(26)	(15)		(46)
Income before provision for taxes on income	597	528	1,576	[1]	1,364	[1]
Depreciation and amortization	111	107	332		303	[1],[2]
Other business activities
Segment Reporting Information [Line Items]
Income before provision for taxes on income	(87)	(87)	(264)		(246)
Depreciation and amortization	6	7	19	[2]	18	[2]
Operating Segments
Segment Reporting Information [Line Items]
Income before provision for taxes on income	1,045	904	2,809		2,614
Depreciation and amortization	30	25	81	[2]	69	[2]
Operating Segments | U.S.
Segment Reporting Information [Line Items]
Revenue	996	844	2,605		2,342
Cost of Sales	194	163	515		468
Gross Profit	$ 802	$ 681	$ 2,090		$ 1,874
Gross margin, percentage	80.50%	80.70%	80.20%		80.00%
Operating Expenses	$ 157	$ 130	$ 418		$ 367
Other (income)/deductions—net	0	0	4		0
Income before provision for taxes on income	645	551	1,668		1,507
Depreciation and amortization	15	12	40	[2]	31	[2]
Operating Segments | International
Segment Reporting Information [Line Items]
Revenue	767	721	2,203	[3]	2,181	[3]
Cost of Sales	245	234	697		662
Gross Profit	$ 522	$ 487	$ 1,506		$ 1,519
Gross margin, percentage	68.10%	67.50%	68.40%		69.60%
Operating Expenses	$ 122	$ 134	$ 364		$ 412
Other (income)/deductions—net	0	0	1		0
Income before provision for taxes on income	400	353	1,141		1,107
Depreciation and amortization	15	13	41	[2]	38	[2]
Corporate
Segment Reporting Information [Line Items]
Income before provision for taxes on income	(207)	(172)	(559)		(512)
Depreciation and amortization	27	19	75	[2]	49	[2]
Reconciling Items
Segment Reporting Information [Line Items]
Depreciation and amortization	0	0	0	[2]	0	[2]
Purchase accounting adjustments, Earnings	(48)	(55)	(155)		(179)
Purchase accounting adjustments, Depreciation and Amortization	48	55	155	[2]	165	[2]
Acquisition-related costs	(1)	(6)	(15)		(33)
Certain significant items, Earnings	(9)	17	(4)	[4]	(56)	[4]
Certain significant items, Depreciation and Amortization	0	0	0	[2],[4]	0	[2],[4]
Other unallocated, Earnings	(96)	(73)	(236)		(224)
Other Unallocated, Depreciation and Amortization	$ 0	$ 1	$ 2	[2]	$ 2	[2]

[1] Defined as income before provision for taxes on income.

[2] Certain production facilities are shared. Depreciation and amortization is allocated to the reportable operating segments based on estimates of where the benefits of the related assets are realized.

[3] Revenue denominated in euros was $517 million and $541 million for the nine months ended September 30, 2020 and September 30, 2019, respectively.

[4] For the nine months ended September 30, 2020, primarily represents a net gain resulting from net cash proceeds received pursuant to an agreement related to the 2016 sale of certain U.S. manufacturing sites of $18 million, partially offset by CEO transition-related costs of $14 million. For the nine months ended September 30, 2019, primarily represents (i) a change in estimate related to inventory costing of $68 million, (ii) income of $20 million resulting from a contingent payment received pursuant to an agreement related to the 2016 sale of certain manufacturing sites, and (iii) product transfer costs and consulting fees of $7 million related to our supply network strategy.