Acquisitions (Allocation Of Acquisition Costs) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012
Business Acquisition [Line Items]
Cash	$ 394	$ 95
Estimated fair value of deferred/contingent consideration	140	14
Total Consideration	534	109
Allocation of purchase price:
Goodwill	7,230	6,804	6,893	6,792
Current Fiscal Period Acquisitions [Member]
Business Acquisition [Line Items]
Cash	394
Estimated fair value of deferred/contingent consideration	140
Total Consideration	534
Allocation of purchase price:
Cash and cash equivalents	20
Accounts receivable, net	5
Other current assets	0
Property, plant, and equipment	3
Intangible assets	210
Goodwill	334
Other assets	2
Total assets acquired	574
Current liabilities	35
Other liabilities	5
Total liabilities assumed	40
Net assets acquired	$ 534