Other Financial Data (Other Liabilities) (Details) (USD $) In Millions, unless otherwise specified	Jun. 28, 2014	Dec. 31, 2013
Other Liabilities [Abstract]
Defined benefit plans, including split dollar life insurance arrangements	$ 1,654	$ 1,751
Postretirement health care benefit plan	118	118
Deferred revenue	150	162
Unrecognized tax benefits	57	99
Other	172	184
Other liabilities	$ 2,151	$ 2,314