Restructuring Charges (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restructuring charges	$ 50	$ 75	$ 76
Severance and Related Costs
Restructuring charges	22	40	38
Contractual Obligations and Other
Restructuring charges	25	32	32
Agent Conversions
Restructuring charges	3	3	6
Cost of Goods, Total [Member]
Restructuring charges	2
Selling, General and Administrative Expenses [Member]
Restructuring charges	$ 48