Pension and Postretirement Benefit Plans (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Oct. 02, 2011		Sep. 30, 2012		Oct. 02, 2011
U.S. Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 86	[1]	$ 87	[1]	$ 272	[1]	$ 266	[1]
Interest cost	170	[1]	181	[1]	528	[1]	550	[1]
Expected return on plan assets	(247)	[1]	(216)	[1]	(738)	[1]	(657)	[1]
Amortization of:
Actuarial losses	75	[1]	33	[1]	232	[1]	103	[1]
Prior service credits	(2)	[1]	(2)	[1]	(8)	[1]	(6)	[1]
Curtailments and settlements-net	31	[1]	20	[1]	57	[1]	71	[1]
Special termination benefits	1	[1]	7	[1]	8	[1]	17	[1]
Net periodic benefit costs	114	[1]	110	[1]	351	[1]	344	[1]
U.S. Supplemental (Non-Qualified) Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	8	[2]	9	[2]	27	[2]	28	[2]
Interest cost	15	[2]	17	[2]	47	[2]	54	[2]
Expected return on plan assets	0	[2]	0	[2]	0	[2]	0	[2]
Amortization of:
Actuarial losses	10	[2]	9	[2]	31	[2]	27	[2]
Prior service credits	(2)		(1)		(3)	[2]	(2)	[2]
Curtailments and settlements-net	3	[2]	3	[2]	13	[2]	21	[2]
Special termination benefits	8	[2]	5	[2]	23	[2]	18	[2]
Net periodic benefit costs	42	[2]	42	[2]	138	[2]	146	[2]
International Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	52	[3]	61	[3]	156	[3]	185	[3]
Interest cost	99	[3]	113	[3]	302	[3]	333	[3]
Expected return on plan assets	(104)	[3]	(111)	[3]	(317)	[3]	(326)	[3]
Amortization of:
Actuarial losses	28	[3]	21	[3]	63	[3]	64	[3]
Prior service credits	(2)	[3]	(2)	[3]	(5)	[3]	(4)	[3]
Curtailments and settlements-net	0	[3]	3	[3]	(7)	[3]	7	[3]
Special termination benefits	0	[3]	1	[3]	3	[3]	4	[3]
Net periodic benefit costs	73	[3]	86	[3]	195	[3]	263	[3]
Postretirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	16		17		51		52
Interest cost	46		49		137		146
Expected return on plan assets	(12)		(9)		(35)		(26)
Amortization of:
Actuarial losses	8		4		25		12
Prior service credits	(13)		(13)		(37)		(40)
Curtailments and settlements-net	(3)		(14)		(26)		(40)
Special termination benefits	1		1		5		2
Net periodic benefit costs	$ 43		$ 35		$ 120		$ 106

[1] The net periodic benefit cost for the nine months ended September 30, 2012, compared to the nine months ended October 2, 2011, for our U.S. qualified plans was largely unchanged, as (i) an increase in the amounts amortized for actuarial losses (resulting from a decrease in the discount rate and lower than expected actual returns in 2011) was largely offset by a higher expected return on plan assets (resulting from contributions made to the plan in 2011) as well as the fact that (ii) within curtailments and settlements, net, the curtailment gain resulting from the decision to freeze the defined benefit plans in the U.S. and Puerto Rico was more than offset by higher settlement activity.

[2] The decrease in net periodic benefit cost for the nine months ended September 30, 2012, compared to the nine months ended October 2, 2011, for our U.S. supplemental (non-qualified) pension plans reflects the curtailment gain resulting from the decision to freeze the defined benefit plans in the U.S. and Puerto Rico.

[3] The decrease in net periodic benefit costs for the nine months ended September 30, 2012, compared to the nine months ended October 2, 2011, for our international pension plans was primarily driven by changes in assumptions in our U.K. plans in 2011 and higher curtailment gains associated with ongoing restructuring initiatives.