Pensions and Other Postretirement Benefits (Change in Accumulated Other Comprehensive Loss (Pretax) Relating to Defined Benefit Pension and Other Postretirement Benefits) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Pensions
Defined Benefit Plan Disclosure [Line Items]
Net actuarial gain arising during the year	$ (250)
New prior service credit	(25)
Other Comprehensive Income (Loss), Finalization of Pension and Non-Pension Postretirement Plan Valuation, before Tax	(36)
Other Comprehensive Income(Loss) impact of pension plan spinoff	(159)
Amortization of actuarial loss	(103)
Amortization of prior service cost	2
Foreign currency translation adjustments and other	(7)
Net change	(578)
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Net actuarial gain arising during the year	(160)
New prior service credit	(9)
Other Comprehensive Income (Loss), Finalization of Pension and Non-Pension Postretirement Plan Valuation, before Tax	(61)
Amortization of actuarial loss	(28)
Amortization of prior service cost	10
Foreign currency translation adjustments and other	(3)
Net change	(251)
Defined Contribution Pension | Pensions
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	$ (2)		$ 1