Pension and Postretirement Benefit Plans - Narrative (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Apr. 01, 2012
U.S. Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Contributions	$ 20
Expected contributions in next fiscal year	20
U.S. Supplemental (Non-Qualified) Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Contributions	83
Expected contributions in next fiscal year	137
International Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Contributions	116
Expected contributions in next fiscal year	432
Postretirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Contributions	172
Expected contributions in next fiscal year	$ 364