Consolidated Balance Sheets (Parentheticals) (USD $) In Millions, except Share data, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Accounts receivable, allowance	$ 68	$ 72
Common stock, par value	$ 0.10	$ 0.10
Common stock, authorized	1,000	1,000
Common stock, outstanding	378	378