Commitments And Contingencies (Narrative) (Details) $ / shares in Units, $ in Millions	6 Months Ended
Jun. 28, 2019 USD ($) $ / shares
Commitments and Contingencies Disclosure [Abstract]
Loss contingency accrual, period increase	$ 36
Loss contingency accrual, period increase, after-tax	$ 29
Loss contingency accrual, period increase, per diluted share \| $ / shares	$ 0.04

Amount of increase (decrease) in loss contingency liability.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349

Name:	us-gaap_LossContingencyAccrualCarryingValuePeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration