Consolidated Balance Sheets (Parentheticals) (USD $) In Millions, except Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Accounts receivable, allowance	$ 57	$ 59
Common stock, par value	$ 0.1	$ 0.1
Common stock, authorized	1,000us-gaap_CommonStockSharesAuthorized	1,000us-gaap_CommonStockSharesAuthorized
Common stock, outstanding	378us-gaap_CommonStockSharesOutstanding	378us-gaap_CommonStockSharesOutstanding

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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