Net cash outflow othat the employer's expected to be paidout for the plan in the current fiscal period.

No definition available.

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- Definition

1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Projected Benefit Obligation
-URI http://asc.fasb.org/extlink&oid=6522206

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Accumulated Postretirement Benefit Obligation
-URI http://asc.fasb.org/extlink&oid=6503904

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Amount of the employer's best estimate of contributions expected to be paid to the plan in the current fiscal period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2709-114920

+ Details

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- Definition

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 30
-Section 35
-Paragraph 50
-URI http://asc.fasb.org/extlink&oid=49178875&loc=d3e12355-114930

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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- Definition

Plan assets of a defined benefit plan, as a percentage of projected benefit obligation.

+ References

No definition available.

+ Details

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- Details

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Retirement and Other Benefit Programs (Expected Pension and OPEB Plan Funding) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Jun. 30, 2016	Jun. 03, 2016
OPEB
Defined Benefit Plan Disclosure [Line Items]
Projected Benefit Obligation			$ 23.5
Baxalta Incorporated [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets			358.5
Projected Benefit Obligation			$ 945.4
Defined Benefit Plan, Funded Percentage			38.00%
Baxalta Incorporated [Member] \| U.S. Pension
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets		$ 218.0	$ 218.0
Projected Benefit Obligation			441.6
Baxalta Incorporated [Member] \| U.S. Pension \| Qualified plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets			218.0
Projected Benefit Obligation			$ 410.9
Defined Benefit Plan, Funded Percentage			53.00%
Baxalta Incorporated [Member] \| U.S. Pension \| Nonqualified plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected Benefit Obligation			$ 30.7
Baxalta Incorporated [Member] \| International Pension
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Contributions in Current Fiscal Year	$ 1.0
Defined Benefit Plan, Fair Value of Plan Assets		$ 140.5	140.5
Projected Benefit Obligation			503.8
Baxalta Incorporated [Member] \| International Pension \| Funded plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets			140.5
Projected Benefit Obligation			$ 324.0
Defined Benefit Plan, Funded Percentage			43.00%
Baxalta Incorporated [Member] \| International Pension \| Unfunded plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected Benefit Obligation			$ 179.8
Baxalta Incorporated [Member] \| OPEB
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Net Cash Outflow in Current Fiscal Year	$ 4.0
Defined Benefit Plan, Fair Value of Plan Assets			$ 0.0