Restructuring and Long-Lived Asset Impairment Charges (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2011
Restructuring and Long-Lived Asset Impairment Charges (Textual) [Abstract]
Restructuring and long-lived asset impairment charges	$ 2	$ 9
Restructuring Reserve (Textual) [Abstract]
Total restructuring reserve	31				34
Restructuring Reserve, Settled with Cash	5
Expected Restructuring-related future payments			8	8
Expected future restructuring-related payments after 2013	15
Severance [Member]
Restructuring and Long-Lived Asset Impairment Charges (Textual) [Abstract]
Restructuring and long-lived asset impairment charges	1	4
Restructuring Reserve (Textual) [Abstract]
Total restructuring reserve	2				4
Restructuring Reserve, Settled with Cash	3
Lease Obligations [Member]
Restructuring and Long-Lived Asset Impairment Charges (Textual) [Abstract]
Restructuring and long-lived asset impairment charges		1
Restructuring Reserve (Textual) [Abstract]
Total restructuring reserve	20				21
Restructuring Reserve, Settled with Cash	1
Asset Impairments [Member]
Restructuring and Long-Lived Asset Impairment Charges (Textual) [Abstract]
Restructuring and long-lived asset impairment charges		1
Other exit costs [Member]
Restructuring and Long-Lived Asset Impairment Charges (Textual) [Abstract]
Restructuring and long-lived asset impairment charges	1	3
Restructuring Reserve (Textual) [Abstract]
Total restructuring reserve	9				9
Restructuring Reserve, Settled with Cash	$ 1