Acquisitions (Allocation Of Acquisition Costs) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Cash	$ 448	$ 426
Estimated fair value of deferred/contingent consideration	154	147
Total Consideration	602	573
Allocation of purchase price:
Goodwill	7,506	$ 7,179	$ 7,241	$ 6,893
Current Fiscal Period Acquisitions [Member]
Business Acquisition [Line Items]
Cash	448
Estimated fair value of deferred/contingent consideration	154
Total Consideration	602
Allocation of purchase price:
Cash and cash equivalents	17
Accounts receivable, net	22
Other current assets	3
Property, plant, and equipment	5
Intangible assets	247
Goodwill	356
Other assets	3
Total assets acquired	653
Current liabilities	34
Other liabilities	17
Total liabilities assumed	51
Net assets acquired	$ 602