Information By Segment and Geographic Region (Geographic Area Information) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 31, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Business Segments Information Abstract
Net Sales	$ 1,824	$ 1,436	$ 1,393	$ 1,228	$ 1,817	$ 1,517	$ 1,497	$ 1,396	$ 5,881	$ 6,227	$ 6,269
Assets	10,423				11,851				10,423	11,851
Segment, Continuing Operations
Business Segments Information Abstract
Net Sales									5,881	6,227	6,269
Assets	10,423				9,309				10,423	9,309	10,143
Segment, Continuing Operations | United States
Business Segments Information Abstract
Net Sales									3,354	3,648	3,685
Assets	8,468				6,201				8,468	6,201	6,268
Segment, Continuing Operations | China
Business Segments Information Abstract
Net Sales									160	203	198
Assets	382				420				382	420	552
Segment, Continuing Operations | United Kingdom
Business Segments Information Abstract
Net Sales									128	112	118
Assets	966				1,607				966	1,607	1,323
Segment, Continuing Operations | Israel
Business Segments Information Abstract
Net Sales									95	94	107
Assets	131				186				131	186	797
Segment, Continuing Operations | Other, net of eliminations
Business Segments Information Abstract
Net Sales									2,144	2,170	2,161
Assets	$ 476				$ 895				$ 476	$ 895	$ 1,203