Fair Value Measurement Fair Value Inputs, Liabilities, Hospira Quantitative Information (Details) - Hospira [Member]		12 Months Ended
	Feb. 03, 2017	Dec. 31, 2019	Dec. 31, 2018
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value Assumptions, Expected Volatility Rate-Adjusted EBITDA	29.00%	30.00%	26.00%
Fair Value Assumptions, Market Price of Risk	6.93%	5.24%	5.99%
Fair Value Assumptions, Cost of Debt	4.16%	5.25%	4.08%
Measurement Input, Cost of Debt [Domain]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.1000	0.0825	0.0875
Measurement Input, Risk Free Interest Rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.0282	0.0287	0.0258