Pension and Postretirement Benefit Plans (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 29, 2013		Sep. 30, 2012		Sep. 29, 2013		Sep. 30, 2012
U.S. Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 75	[1]	$ 86	[1]	$ 227	[1]	$ 272	[1]
Interest cost	166	[1]	170	[1]	501	[1]	528	[1]
Expected return on plan assets	(248)	[1]	(247)	[1]	(752)	[1]	(738)	[1]
Amortization of:
Actuarial losses	88	[1]	75	[1]	267	[1]	232	[1]
Prior service credits	(2)	[1]	(2)	[1]	(5)	[1]	(8)	[1]
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments	0	[1]	0	[1]	(1)	[1]	(56)	[1]
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	29	[1]	31	[1]	92	[1]	113	[1]
Special termination benefits	0	[1]	1	[1]	0	[1]	8	[1]
Net periodic benefit costs	108	[1]	114	[1]	329	[1]	351	[1]
U.S. Supplemental (Non-Qualified) Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	7	[2]	8	[2]	20	[2]	27	[2]
Interest cost	26	[2]	15	[2]	53	[2]	47	[2]
Expected return on plan assets	0	[2]	0	[2]	0	[2]	0	[2]
Amortization of:
Actuarial losses	11	[2]	10	[2]	38	[2]	31	[2]
Prior service credits	(1)		(2)		(2)	[2]	(3)	[2]
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments	0	[2]	0	[2]	0	[2]	(8)	[2]
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	7	[2]	3	[2]	35	[2]	21	[2]
Special termination benefits	0	[2]	8	[2]	0	[2]	23	[2]
Net periodic benefit costs	50	[2]	42	[2]	144	[2]	138	[2]
International Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	50	[3]	50	[3]	155	[3]	151	[3]
Interest cost	92	[3]	97	[3]	279	[3]	297	[3]
Expected return on plan assets	(99)	[3]	(103)	[3]	(301)	[3]	(314)	[3]
Amortization of:
Actuarial losses	27	[3]	29	[3]	99	[3]	63	[3]
Prior service credits	(2)	[3]	(3)	[3]	(5)	[3]	(6)	[3]
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments	(6)	[3]	0	[3]	(6)	[3]	(9)	[3]
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	9	[3]	2	[3]	14	[3]	4	[3]
Special termination benefits	1	[3]	0	[3]	3	[3]	3	[3]
Net periodic benefit costs	72	[3]	72	[3]	238	[3]	189	[3]
Postretirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	15		16		46		51
Interest cost	42		46		125		137
Expected return on plan assets	(14)		(12)		(41)		(35)
Amortization of:
Actuarial losses	11		8		34		25
Prior service credits	(11)		(13)		(33)		(37)
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments	0		(3)		(9)		(26)
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	0		0		0		0
Special termination benefits	0		1		0		5
Net periodic benefit costs	$ 43		$ 43		$ 122		$ 120

[1] The decrease in net periodic benefit costs for the nine months ended September 29, 2013, compared to the nine months ended September 30, 2012, for our U.S. qualified plans was primarily driven by lower service cost resulting from the decision in 2012 to freeze the defined benefit plans in the U.S. and Puerto Rico, lower settlement activity and greater expected return on plan assets resulting from a higher plan asset base, partially offset by the curtailment gain in the second quarter of 2012 resulting from the decision to freeze the defined benefit plans in the U.S. and Puerto Rico. Also, the decrease in the discount rate resulted in lower interest costs, as well as an increase in the amounts amortized for actuarial losses.

[2] The increase in net periodic benefit costs for the nine months ended September 29, 2013, compared to the nine months ended September 30, 2012, for our U.S. supplemental (non-qualified) pension plans was primarily driven by higher settlement activity, an increase in the amounts amortized for actuarial losses resulting from the decrease in the discount rate and the curtailment gain in the second quarter of 2012 resulting from the decision to freeze the defined benefit plans in the U.S. and Puerto Rico, partially offset by special termination benefits in 2012.

[3] The increase in net periodic benefit costs for the nine months ended September 29, 2013, compared to the nine months ended September 30, 2012, for our international pension plans was primarily driven by an increase in the amounts amortized for actuarial losses resulting from decreases in discount rates and higher settlement activity.