Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Reconciliation of Revenue from Segments to Consolidated [Table Text Block]

A reconciliation of the totals reported for the reportable segments to the applicable line items in our accompanying consolidated statements of operations is as follows (in millions, except percentages):

	Year Ended December 31,
Net sales	2018		2017		2016
MedSurg*	$	3,007	$	2,742	$	2,445
Rhythm and Neuro*	3,041		2,808		2,649
Cardiovascular	3,777		3,500		3,292
	$	9,823	$	9,048	$	8,386

Reconciliation of depreciation by reportable segment to total [Table Text Block]

	Year Ended December 31,
Depreciation expense	2018		2017		2016
MedSurg*	$	72	$	68	$	60
Rhythm and Neuro*	91		91		91
Cardiovascular	133		120		118
	$	296	$	279	$	270

Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]

	Year Ended December 31,
Income (loss) before income taxes	2018			2017			2016
MedSurg*	$	1,102		$	984		$	852
Rhythm and Neuro*	655			537			402
Cardiovascular	1,117			988			946
Operating income allocated to reportable segments	2,875			2,509			2,200
Corporate expenses, including hedging activities	(372		)	(252		)	(179		)
Intangible asset impairment charges, acquisition-related, restructuring- and restructuring-related and litigation-related net (charges) credits	(398		)	(407		)	(1,029		)
Amortization expense	(599		)	(565		)	(545		)
Operating income (loss)	1,506			1,285			447
Other expense, net	(85		)	(353		)	(270		)
	$	1,422		$	933		$	177

Segment operating income as percentage of net sales [Table Text Block]

	Year Ended December 31,
Operating income as a percentage of segment net sales	2018		2017		2016
MedSurg*	36.7	%	35.9	%	34.9	%
Rhythm and Neuro*	21.5	%	19.1	%	15.2	%
Cardiovascular	29.6	%	28.2	%	28.7	%

Reconciliation of Assets from Segment to Consolidated [Table Text Block]

	As of December 31,
Total assets	2018		2017
MedSurg*	$	1,846	$	1,871
Rhythm and Neuro*	1,696		1,607
Cardiovascular	1,954		1,824
Total assets allocated to reportable segments	5,497		5,302
Goodwill	7,911		6,998
Other intangible assets, net	6,372		5,837
All other corporate assets	1,219		905
	$	20,999	$	19,042

Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]

	As of December 31,
Long-lived assets	2018		2017		2016
U.S.	$	1,061	$	1,065	$	1,082
Ireland	242		210		181
Other countries	478		422		367
Property, plant and equipment, net	1,782		1,697		1,630
Goodwill	7,911		6,998		6,678
Other intangible assets, net	6,372		5,837		5,883
	$	16,064	$	14,531	$	14,191