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Advertising and Promotion Expense	6 Months Ended
Advertising and Promotion Expense	Jun. 30, 2013
Marketing and Advertising Expense [Abstract]
Advertising and Promotion Expense	Advertising and Promotion Expense Advertising and certain promotion expenses are included in "Selling, general and administrative" in the Condensed Consolidated Statements of Income and were $6 million and $8 million for the quarters ended June 30, 2013 and 2012, respectively, and $12 million and $15 million for the six months ended June 30, 2013 and 2012, respectively.