Defined Benefit Plans (Narrative) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
Sep. 26, 2014
U.S. pension benefits
Defined Benefit Plan Disclosure
Defined benefit plans, estimated future employer contributions in current fiscal year	$ 50
Non-U.S. pension benefits
Defined Benefit Plan Disclosure
Defined benefit plans, estimated future employer contributions in current fiscal year	$ 55

Amount of employer's best estimate of contributions expected to be paid to the plan in the current remaining fiscal period.

No definition available.

Name:	us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration