Deferred Tax Assets Unrealizable in Future (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011
Internal Revenue Service (IRS)
Operating Loss Carryforwards [Line Items]
Deferred Tax Asset	$ 638
Valuation Allowance	(638)
Carryforward Period	20
Earliest Year of Expiration	2023
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Deferred Tax Asset	134
Valuation Allowance	(134)
Carryforward Period	Various
Earliest Year of Expiration	2012
BRAZIL
Operating Loss Carryforwards [Line Items]
Deferred Tax Asset	34
Valuation Allowance	(19)
Carryforward Period	Unlimited
FRANCE
Operating Loss Carryforwards [Line Items]
Deferred Tax Asset	16
Carryforward Period	Unlimited
AUSTRALIA
Operating Loss Carryforwards [Line Items]
Deferred Tax Asset	34
Valuation Allowance	(34)
Carryforward Period	Unlimited
VENEZUELA
Operating Loss Carryforwards [Line Items]
Deferred Tax Asset	7
Valuation Allowance	(6)
Carryforward Period	Various
Earliest Year of Expiration	2012
UNITED KINGDOM
Operating Loss Carryforwards [Line Items]
Deferred Tax Asset	12
Valuation Allowance	(12)
Carryforward Period	Unlimited
ARGENTINA
Operating Loss Carryforwards [Line Items]
Deferred Tax Asset	7
Valuation Allowance	(7)
Carryforward Period	5
Earliest Year of Expiration	2012
MEXICO
Operating Loss Carryforwards [Line Items]
Deferred Tax Asset	2
Valuation Allowance	(2)
Carryforward Period	10
Earliest Year of Expiration	2017
South Africa
Operating Loss Carryforwards [Line Items]
Deferred Tax Asset	1
Carryforward Period	15
Earliest Year of Expiration	2024
Operating Income (Loss)
Operating Loss Carryforwards [Line Items]
Deferred Tax Asset	885
Valuation Allowance	$ (852)