Acquisitions (Allocation Of The Preliminary Purchase Price To The Acquired Net Assets Of Acquisitions) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Goodwill	$ 6,356	$ 4,136	$ 4,186
Weighted average life of intangible assets	15 years	13 years
Customer relationship
Business Acquisition [Line Items]
Weighted average life of intangible assets	15 years	15 years
Developed technology and patents
Business Acquisition [Line Items]
Weighted average life of intangible assets	14 years	13 years
Non-compete
Business Acquisition [Line Items]
Weighted average life of intangible assets	12 years	13 years
Sage Products [Member]
Business Acquisition [Line Items]
Purchase price paid	$ 2,870
Contingent consideration	5
Loss on settlement of pre-existing contract	0
Total consideration	2,875
Cash	91
Accounts receivable	29
Inventory	63
Other assets	75
Liabilities	(81)
Goodwill	1,525
Assets acquired and liabilities assumed, net	$ 2,875
Weighted average life of intangible assets	15 years
Sage Products [Member] | Customer relationship
Business Acquisition [Line Items]
Business combination, acquired intangible assets	$ 930
Sage Products [Member] | Trade name
Business Acquisition [Line Items]
Business combination, acquired intangible assets	70
Sage Products [Member] | Developed technology and patents
Business Acquisition [Line Items]
Business combination, acquired intangible assets	173
Sage Products [Member] | Non-compete
Business Acquisition [Line Items]
Business combination, acquired intangible assets	0
Sage Products [Member] | IPRD
Business Acquisition [Line Items]
Business combination, acquired intangible assets	0
Physio Acquisition [Domain]
Business Acquisition [Line Items]
Purchase price paid	1,299
Contingent consideration	0
Loss on settlement of pre-existing contract	0
Total consideration	1,299
Cash	32
Accounts receivable	106
Inventory	66
Other assets	99
Liabilities	(363)
Goodwill	625
Assets acquired and liabilities assumed, net	$ 1,299
Weighted average life of intangible assets	14 years
Physio Acquisition [Domain] | Customer relationship
Business Acquisition [Line Items]
Business combination, acquired intangible assets	$ 341
Physio Acquisition [Domain] | Trade name
Business Acquisition [Line Items]
Business combination, acquired intangible assets	160
Physio Acquisition [Domain] | Developed technology and patents
Business Acquisition [Line Items]
Business combination, acquired intangible assets	226
Physio Acquisition [Domain] | Non-compete
Business Acquisition [Line Items]
Business combination, acquired intangible assets	0
Physio Acquisition [Domain] | IPRD
Business Acquisition [Line Items]
Business combination, acquired intangible assets	7
Other
Business Acquisition [Line Items]
Purchase price paid	348	$ 140
Contingent consideration	27	9
Loss on settlement of pre-existing contract	(19)	0
Total consideration	356	149
Cash	1	0
Accounts receivable	17	4
Inventory	5	9
Other assets	21	13
Liabilities	(29)	(7)
Goodwill	180	62
Assets acquired and liabilities assumed, net	$ 356	$ 149
Weighted average life of intangible assets	12 years	10 years
Other | Customer relationship
Business Acquisition [Line Items]
Business combination, acquired intangible assets	$ 12	$ 13
Other | Trade name
Business Acquisition [Line Items]
Business combination, acquired intangible assets	13	2
Other | Developed technology and patents
Business Acquisition [Line Items]
Business combination, acquired intangible assets	127	53
Other | Non-compete
Business Acquisition [Line Items]
Business combination, acquired intangible assets	2	0
Other | IPRD
Business Acquisition [Line Items]
Business combination, acquired intangible assets	$ 7	$ 0