Income Taxes Schedule of Deferred Tax Assets and Liabilities (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011
Deferred Tax Assets and Liabilities [Line Items]
Accrued liabilities	$ 91		$ 358
Compensation and benefits	173		143
State taxes and other credits	96		95
Net operating losses	34		21
Other items	31		34
Less: Valuation allowance	(25)		(17)
Total Deferred Tax Assets	400		634
Prepaid expenses and other accruals	56		54
Intangible assets	(113)		(116)
Property, plant and equipment	(122)		(113)
Other items	42		42
Total Deferred Tax Liabilities	333		325
Net Deferred Tax Assets	67	[1]	309	[1]
Current deferred tax liabilities in other	$ 17		$ 9

[1] $17 million and $9 million of current deferred tax liabilities have been included in other current liabilities on the balance sheet at December 31, 2012 and 2011, respectively.