Reclassifications Out of Accumulated Other Comprehensive Loss (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
Amortization of defined benefit pension and post-retirement items:
Income taxes	$ (704)		$ (629)	$ (654)
Accumulated Defined Benefit Plans Adjustment | Reclassification out of Accumulated Other Comprehensive Income
Amortization of defined benefit pension and post-retirement items:
Prior service costs	(4)	[1]
Actuarial loss	(20)	[1]
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest, Total	(24)
Income taxes	8
Total reclassifications for the period	$ (16)

[1] These accumulated comprehensive loss components are included in the computation of net periodic pension cost (see Note 16, "Retirement Plans," for additional details), which is included in cost of sales and selling, general and administrative expenses.