Financial Instruments - Long-term Debt (Details) (USD $)	6 Months Ended
	Jun. 29, 2014		May 15, 2014
Debt Instrument [Line Items]
Long-term Debt	$ 32,267,000,000
Senior Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt instrument, face amount			4,500,000,000
Long-term Debt	4,500,000,000
Debt instrument, redemption rule, redemption price, percentage	100.00%
Senior Unsecured Debt [Member] | Senior Unsecured Debt, 1.1%, Due 2017 [Member]
Debt Instrument [Line Items]
Long-term Debt	1,000,000,000	[1],[2]
Debt instrument, interest rate, stated percentage	1.10%
Senior Unsecured Debt [Member] | Senior Unsecured Debt, 2.1%, Due 2019 [Member]
Debt Instrument [Line Items]
Long-term Debt	1,500,000,000	[1],[2]
Debt instrument, interest rate, stated percentage	2.10%
Senior Unsecured Debt [Member] | Senior Unsecured Debt, 3.4%, Due 2024 [Member]
Debt Instrument [Line Items]
Long-term Debt	1,000,000,000	[1],[2]
Debt instrument, interest rate, stated percentage	3.40%
Senior Unsecured Debt [Member] | Senior Unsecured Debt, 4.4%, Due 2044 [Member]
Debt Instrument [Line Items]
Long-term Debt	500,000,000	[1],[2]
Debt instrument, interest rate, stated percentage	4.40%
Senior Unsecured Debt [Member] | Senior Unsecured Debt, Three-month LIBOR Plus 0.15%, Due 2017 [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 500,000,000	[3]
Senior Unsecured Debt [Member] | Senior Unsecured Debt, Three-month LIBOR Plus 0.15%, Due 2017 [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, basis spread on variable rate	0.15%

[1] The notes are redeemable, in whole or in part, at any time at Pfizer's option, at a redemption price equal to the greater of 100% of the principal amount of the notes being redeemed on the redemption date, or the sum of the present values of the remaining scheduled payments of principal and interest discounted at the U.S. Treasury rate plus an incremental percentage, depending on the issuance; plus, in each case, accrued and unpaid interest.

[2] Interest is payable semi-annually beginning November 15, 2014.

[3] Interest is payable quarterly beginning August 15, 2014.