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Taxes on Income - Reconciliation Between Effective Tax Rate and US Statutory Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Amount
U.S. statutory rate applied to income before taxes	$ 2,408	$ 1,827	$ 2,282
Differential arising from:
Foreign earnings	(1,020)	(245)	(1,654)
GILTI and the foreign-derived intangible income deduction	336	(25)	0
Tax settlements	(403)	(22)	(356)
R&D tax credit	(118)	(96)	(71)
State taxes	(2)	201	77
Acquisition of Peloton	209	0	0
TCJA	117	289	2,625
Valuation allowances	113	269	632
Acquisition-related costs, including amortization	95	267	713
Restructuring	39	56	142
Other	(87)	(13)	(287)
Taxes on income	$ 1,687	$ 2,508	$ 4,103
Tax Rate
U.S. statutory rate applied to income before taxes	21.00%	21.00%	35.00%
Differential arising from:
Foreign earnings	(8.90%)	(2.80%)	(25.40%)
GILTI and the foreign-derived intangible income deduction	2.90%	(0.30%)	0.00%
Tax settlements	(3.50%)	(0.30%)	(5.50%)
R&D tax credit	(1.00%)	(1.10%)	(1.10%)
State taxes	0.00%	2.30%	1.20%
Acquisition of Peloton	1.80%	0.00%	0.00%
TCJA	0.010	0.033	0.403
Valuation allowances	1.00%	3.10%	9.70%
Acquisition-related costs, including amortization	0.80%	3.10%	10.90%
Restructuring	0.30%	0.60%	2.20%
Other	(0.70%)	(0.10%)	(4.40%)
Total, Tax Rate	14.70%	28.80%	62.90%

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