Share-Based Payments (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of stock approved and registered with the SEC		30,000,000
Shares available for future grant		13,000,000
Period following separation service		60 days
Expected stock price volatility	[1]	26.99%	28.63%	27.64%
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price percentage of the fair market value price at date of grant		100.00%
Award vesting period (in years)		3 years
Contractual term (in years)		10 years
Total compensation cost related to nonvested RSU awards not yet recognized, pre-tax		$ 11
Weighted-average period over which RSU cost is expected to be recognized (in years)		8 months
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)		3 years
Total compensation cost related to nonvested RSU awards not yet recognized, pre-tax		$ 45
Weighted-average period over which RSU cost is expected to be recognized (in years)		8 months
Granted (in shares)		256,149
Shares outstanding		324,151
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 194.75
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number		556,106	655,851
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Graded Vesting Period		3 years
Deferred Stock Units (DSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		0
Shares outstanding		66,318	65,654
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost related to nonvested RSU awards not yet recognized, pre-tax		$ 27
Weighted-average period over which RSU cost is expected to be recognized (in years)		1 year 2 months 12 days
Granted (in shares)		101,099
Shares outstanding		82,688
Expected stock price volatility		26.20%	38.10%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 268.71
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number		256,567	251,780
PSUs | Peer Companies
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected stock price volatility		30.60%	40.90%
PSUs | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target units		0.00%
PSUs | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target units		200.00%

[1] Determined using an equal weighting between historical volatility of the Zoetis stock price and implied volatility. The selection of the blended historical and implied volatility approach was based on our assessment that this calculation of expected volatility is more representative of future stock price trends.