Other Financial Data (Amounts Reclassified from Accumulated Other Comprehensive Loss) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of sales - Foreign exchange contracts	$ 651	$ 658
Earnings from continuing operations	192	159
Tax expense (benefit)	(13)	(85)
Reclassification Out Of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total reclassifications for the period, net of tax	18
Reclassification Out Of Accumulated Other Comprehensive Income [Member] | Gains and Losses on Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of sales - Foreign exchange contracts	(1)
Earnings from continuing operations	(1)
Tax expense (benefit)	0
Total reclassifications for the period, net of tax	(1)
Reclassification Out Of Accumulated Other Comprehensive Income [Member] | Amortization of Retirement Benefit Items [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Selling, general, and administrative expenses - Prior service costs	(11)
Selling, general, and administrative expenses - Unrecognized net losses	39
Earnings from continuing operations	28
Tax expense (benefit)	(9)
Total reclassifications for the period, net of tax	$ 19