Condensed Consolidating Statements of Comprehensive Income (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed Financial Statements, Captions [Line Items]
Defined benefit retirement plan gain (loss), tax expense (benefit)	$ 41	$ (4)	$ (64)
Foreign currency translation adjustments, tax benefit
Parent
Condensed Financial Statements, Captions [Line Items]
Foreign currency translation adjustments, tax benefit
Issuer
Condensed Financial Statements, Captions [Line Items]
Foreign currency translation adjustments, tax benefit
Non-guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Foreign currency translation adjustments, tax benefit
Total Consolidating Adjustments
Condensed Financial Statements, Captions [Line Items]
Foreign currency translation adjustments, tax benefit