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.

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)
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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
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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.

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The funded status is measured as the difference between the fair value of plan assets and the benefit obligation. Will normally be the same as the net Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total.

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The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments.

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

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Defined Benefit Plans (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 01, 2016	Jul. 03, 2015	Jul. 01, 2016	Jul. 03, 2015	Dec. 31, 2016	Dec. 31, 2015
U.S. pension benefits
Defined Benefit Plan Disclosure
Net periodic benefit cost	$ (2.3)	$ (0.9)	$ (5.3)	$ (1.6)
Defined benefit plans, estimated future employer contributions in current fiscal year			40.0
Non-U.S. pension benefits
Defined Benefit Plan Disclosure
Net periodic benefit cost	$ 11.4	$ 14.2	22.3	$ 28.5
Defined benefit plans, estimated future employer contributions in current fiscal year			$ 35.0
Change in accounting estimate \| Scenario, forecast
Defined Benefit Plan Disclosure
Net periodic benefit cost					$ (25.0)
Fortive \| Non-U.S. pension benefits
Defined Benefit Plan Disclosure
Funded status						$ 130.0
Benefit obligation						327.0
Plan assets						$ 197.0