Pension and Postretirement Benefit Plans (Detail) (USD $) In Millions	3 Months Ended				6 Months Ended
	Jul. 03, 2011		Jul. 04, 2010		Jul. 03, 2011		Jul. 04, 2010
U.S. Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 89	[1]	$ 89	[1]	$ 179	[1]	$ 183	[1]
Interest cost	184	[1]	188	[1]	369	[1]	379	[1]
Expected return on plan assets	(220)	[1]	(200)	[1]	(441)	[1]	(402)	[1]
Amortization of:
Actuarial losses	35	[1]	38	[1]	70	[1]	76	[1]
Prior service (credits)/costs	(2)	[1]	1	[1]	(4)	[1]	1	[1]
Curtailments and settlements--net	34	[1]	(36)	[1]	51	[1]	(69)	[1]
Special termination benefits	5	[1]	36	[1]	10	[1]	50	[1]
Net periodic benefit costs	125	[1]	116	[1]	234	[1]	218	[1]
U.S. Supplemental (Non-Qualified) Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	10	[2]	7	[2]	19	[2]	15	[2]
Interest cost	18	[2]	21	[2]	37	[2]	40	[2]
Amortization of:
Actuarial losses	9	[2]	8	[2]	18	[2]	15	[2]
Prior service (credits)/costs					(1)	[2]	(1)	[2]
Curtailments and settlements--net	6	[2]	(8)	[2]	18	[2]	(9)	[2]
Special termination benefits	6	[2]	62	[2]	13	[2]	152	[2]
Net periodic benefit costs	49	[2]	90	[2]	104	[2]	212	[2]
International Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	65	[3]	57	[3]	127	[3]	117	[3]
Interest cost	114	[3]	105	[3]	225	[3]	216	[3]
Expected return on plan assets	(112)	[3]	(107)	[3]	(221)	[3]	(219)	[3]
Amortization of:
Actuarial losses	22	[3]	16	[3]	43	[3]	33	[3]
Prior service (credits)/costs	(1)	[3]	(1)	[3]	(2)	[3]	(2)	[3]
Curtailments and settlements--net	6	[3]	(6)	[3]	4	[3]	(5)	[3]
Special termination benefits			2	[3]	3	[3]	3	[3]
Net periodic benefit costs	94	[3]	66	[3]	179	[3]	143	[3]
Postretirement Plans Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	18	[4]	21	[4]	35	[4]	43	[4]
Interest cost	48	[4]	54	[4]	97	[4]	108	[4]
Expected return on plan assets	(8)	[4]	(8)	[4]	(17)	[4]	(16)	[4]
Amortization of:
Actuarial losses	4	[4]			8	[4]
Prior service (credits)/costs	(13)	[4]	(5)	[4]	(27)	[4]	(9)	[4]
Curtailments and settlements--net	(20)	[4]	(2)	[4]	(26)	[4]	(2)	[4]
Special termination benefits	1	[4]	6	[4]	1	[4]	12	[4]
Net periodic benefit costs	$ 30	[4]	$ 66	[4]	$ 71	[4]	$ 136	[4]

[1] The increase in net periodic benefit costs in the first six months of 2011, compared to the first six months of 2010, for our U.S. qualified plans was primarily driven by higher settlement charges and lower curtailment gains associated with Wyeth-related restructuring initiatives partially offset by higher expected return on plan assets and special termination benefits recognized in the prior-year period for certain executives as part of Wyeth-related restructuring initiatives.

[2] The decrease in net periodic benefit costs in the first six months of 2011, compared to the first six months of 2010, for our U.S. supplemental (non-qualified) pension plans was primarily driven by special termination benefits recognized in the prior-year period for certain executives as part of Wyeth-related restructuring initiatives.

[3] The increase in net periodic benefit costs in the first six months of 2011, compared to the first six months of 2010. for our international pension plans was primarily driven by the decrease in the discount rate partially offset by higher expected return on plan assets.

[4] The decrease in net periodic benefit costs in the first six months of 2011, compared to the first six months of 2010, for our postretirement plans was primarily driven by the harmonization of the postretirement plans and by higher curtailment gains and lower settlement charges associated with Wyeth-related restructuring initiatives.