Acquisitions (Allocation Of Acquisition Costs) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012
Business Acquisition [Line Items]
Cash	$ 426	$ 119
Estimated fair value of deferred/contingent consideration	147	37
Total Consideration	573	156
Allocation of purchase price:
Goodwill	7,179	6,865	6,893	6,792
Current Fiscal Period Acquisitions [Member]
Business Acquisition [Line Items]
Cash	426
Estimated fair value of deferred/contingent consideration	147
Total Consideration	573
Allocation of purchase price:
Cash and cash equivalents	20
Accounts receivable, net	6
Other current assets	0
Property, plant, and equipment	4
Intangible assets	233
Goodwill	350
Other assets	5
Total assets acquired	618
Current liabilities	36
Other liabilities	9
Total liabilities assumed	45
Net assets acquired	$ 573