Company Recorded Restructuring Charges (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
January 1 Balance			$ 20
Charges to earnings	4	14	14	38
Cash paid			(19)
Other adjustments			5
September 30 Balance	20		20
Severance and Related Costs
January 1 Balance			10
Charges to earnings			6
Cash paid			(9)
Other adjustments			(1)
September 30 Balance	6		6
Contractual Obligations and Other
January 1 Balance			10
Charges to earnings			8
Cash paid			(10)
Other adjustments			6
September 30 Balance	$ 14		$ 14