Pension and Postretirement Benefit Plans (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Apr. 01, 2012
U.S. Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 77	[1]	$ 96	[1]
Interest cost	168	[1]	183	[1]
Expected return on plan assets	(253)	[1]	(245)	[1]
Amortization of:
Actuarial losses	90	[1]	80	[1]
Prior service credits	(2)	[1]	(3)	[1]
Curtailments and settlements-net	29	[1]	44	[1]
Special termination benefits	0	[1]	5	[1]
Net periodic benefit costs	109	[1]	160	[1]
U.S. Supplemental (Non-Qualified) Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	7	[2]	10	[2]
Interest cost	14	[2]	17	[2]
Expected return on plan assets	0	[2]	0	[2]
Amortization of:
Actuarial losses	13	[2]	11	[2]
Prior service credits	(1)		(1)
Curtailments and settlements-net	22	[2]	13	[2]
Special termination benefits	0	[2]	10	[2]
Net periodic benefit costs	55	[2]	60	[2]
International Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	56	[3]	53	[3]
Interest cost	97	[3]	101	[3]
Expected return on plan assets	(104)	[3]	(105)	[3]
Amortization of:
Actuarial losses	37	[3]	18	[3]
Prior service credits	(2)	[3]	(2)	[3]
Curtailments and settlements-net	3	[3]	(10)	[3]
Special termination benefits	0	[3]	2	[3]
Net periodic benefit costs	87	[3]	57	[3]
Postretirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	16		18
Interest cost	42		46
Expected return on plan assets	(14)		(9)
Amortization of:
Actuarial losses	11		8
Prior service credits	(11)		(12)
Curtailments and settlements-net	(7)		(11)
Special termination benefits	0		2
Net periodic benefit costs	$ 37		$ 42

[1] The decrease in net periodic benefit costs for the three months ended March 31, 2013, compared to the three months ended April 1, 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. 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 decrease in net periodic benefit costs for the three months ended March 31, 2013, compared to the three months ended April 1, 2012, for our U.S. supplemental (non-qualified) pension plans was primarily driven by special termination benefits in 2012 and lower service cost resulting from the decision in 2012 to freeze the defined benefit plans in the U.S. and Puerto Rico, partially offset by higher settlement activity.

[3] The increase in net periodic benefit costs for the three months ended March 31, 2013, compared to the three months ended April 1, 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 the curtailment gain in our German plans in 2012.