Retirement and Other Benefit Programs (Projected Benefit Obligations & Plan Assets & Accumulated Benefit Obligations in Excess of Plan Assets) (Details) - USD ($) $ in Millions		3 Months Ended	6 Months Ended
	Jun. 03, 2016	Jun. 30, 2016	Jun. 30, 2016
U.S. Pension
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Current Liabilities	$ (0.2)
Net liability recognized as of June 3, 2016	(223.6)
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract]
2016 (after June 3, 2016)		$ 0.9	$ 0.9
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate		7.00%	7.00%
International Pension
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	(360.2)
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate		4.50%	4.50%
OPEB
Defined Benefit Plan, Funded Status of Plan [Abstract]
Projected Benefit Obligation	23.5
Baxalta Incorporated [Member]
Defined Benefit Plan, Funded Status of Plan [Abstract]
Projected Benefit Obligation	945.4
Plan Assets	358.5
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Net liability recognized as of June 3, 2016	610.4
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]
Fair Value of Plan Assets	358.5
Baxalta Incorporated [Member] | U.S. Pension
Defined Benefit Plan, Funded Status of Plan [Abstract]
Projected Benefit Obligation	441.6
Plan Assets	218.0	$ 218.0	$ 218.0
Funded Status as of June 3, 2016	(223.6)
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Current Liabilities	0.0
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	(223.4)
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax	369.2
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]
ABO	369.2
Fair Value of Plan Assets	$ 218.0
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract]
2017		3.6	3.6
2018		5.4	5.4
2019		7.3	7.3
2020		9.3	9.3
2021 through 2025		75.6	75.6
Total expected benefit payments for next 10 years		102.1	102.1
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service Cost		1.9	1.9
Interest Cost		1.6	1.6
Expected Return on Plan Assets		(1.3)	(1.3)
Net Periodic Benefit Cost		2.2	2.2
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	4.10%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase	3.80%
Baxalta Incorporated [Member] | International Pension
Defined Benefit Plan, Funded Status of Plan [Abstract]
Projected Benefit Obligation	$ 503.8
Plan Assets	140.5	140.5	140.5
Funded Status as of June 3, 2016	(363.3)
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Current Liabilities	(3.1)
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	(23.5)
Net liability recognized as of June 3, 2016	(363.3)
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax	386.8
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]
ABO	364.9
Fair Value of Plan Assets	$ 118.2
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract]
2016 (after June 3, 2016)		7.3	7.3
2017		14.7	14.7
2018		14.6	14.6
2019		16.2	16.2
2020		16.7	16.7
2021 through 2025		104.8	104.8
Total expected benefit payments for next 10 years		174.3	174.3
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service Cost		2.6	2.6
Interest Cost		0.4	0.4
Expected Return on Plan Assets		(0.5)	(0.5)
Net Periodic Benefit Cost		2.5	2.5
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	1.00%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase	3.20%
Baxalta Incorporated [Member] | OPEB
Defined Benefit Plan, Funded Status of Plan [Abstract]
Plan Assets	$ 0.0
Funded Status as of June 3, 2016	(23.5)
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Net liability recognized as of June 3, 2016	$ (23.5)
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract]
2016 (after June 3, 2016)		0.0	0.0
2017		0.2	0.2
2018		0.3	0.3
2019		0.4	0.4
2020		0.5	0.5
2021 through 2025		3.5	3.5
Total expected benefit payments for next 10 years		4.9	4.9
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service Cost		0.1	0.1
Interest Cost		0.1	0.1
Expected Return on Plan Assets		0.0	0.0
Net Periodic Benefit Cost		$ 0.2	$ 0.2
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	4.20%
Annual rate of increase in the per-capita cost	6.50%
Rate decreased to	5.00%
Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Annual Rate Decrease In Per Capita Cost By Year Ended	2022