Accrued Expenses and Other Current Liabilities (Schedule of Accrued Expenses And Other Current Liabilities) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Accrued Expenses and Other Current Liabilities [Abstract]
Accrued payroll and related	$ 248	$ 237
Accrued taxes	103	93
Accrued interest	46	37
Accrued legal settlements	42	35
Accrued advertising and marketing	28	30
Accrued other	208	199
Accrued expenses and other current liabilities	$ 675	$ 631