Separation Activities and Initial Public Offering (Separation and Senior Notes Offering) (Details) (USD $)			1 Months Ended
	Dec. 31, 2013	Jan. 28, 2013 Senior Notes	Jan. 28, 2013 Pfizer Transfer	Jan. 28, 2013 Pfizer Transfer Senior Notes
Debt Instrument [Line Items]
Senior notes transferred to Pfizer				$ 1,000,000,000
Cash transferred to Pfizer			2,500,000,000
Debt, principal amount	3,652,000,000	3,650,000,000		1,000,000,000
Debt, unamortized discount		$ 10,000,000