Goodwill and Other Intangible Assets (Intangible Assets Subject to Amortization) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Apr. 02, 2011	Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 60		$ 60
Accumulated amortization	49		49	[1]
Amortization expense	1	1
Estimated aggregate annual amortization expense for fiscal year 2012	2
Estimated aggregate annual amortization expense for fiscal year 2013	2
Estimated aggregate annual amortization expense for fiscal year 2014	2
Estimated aggregate annual amortization expense for fiscal year 2015	2
Estimated aggregate annual amortization expense for fiscal year 2016	2
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	19		19
Accumulated amortization	17		17
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	41		41
Accumulated amortization	$ 32		$ 32

[1] * Condensed from audited financial statements.