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Consolidated Statements of Comprehensive Income - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement Of Income And Comprehensive Income [Abstract]
NET INCOME		$ 431.3	$ 389.8	$ 472.7
Other comprehensive (loss) income, before tax:
Foreign currency translation adjustments		13.8	(31.1)	33.8
Unrealized gains (losses) on derivatives:
Unrealized holding gains (losses) arising during period		4.8	10.1	(1.8)
Less: reclassification adjustment for gains included in net income		(4.4)	(2.1)	(0.9)
Unrealized gains (losses) on derivatives		0.4	8.0	(2.7)
Defined benefit plans:
Net actuarial (loss) gains arising during period		(15.9)	(4.2)	6.2
Less: amortization of prior service credit included in net periodic pension cost				(5.1)
Defined benefit plans		(15.9)	(4.2)	1.1
Other comprehensive (loss) income, before tax		(1.7)	(27.3)	32.2
Income tax benefit (expense) related to items of other comprehensive income	[1]	4.7	(0.5)	0.5
Other comprehensive income (loss), net of tax		3.0	(27.8)	32.7
COMPREHENSIVE INCOME		434.3	362.0	505.4
Less: comprehensive income attributable to noncontrolling interest		(0.6)	0.2
COMPREHENSIVE INCOME ATTRIBUTABLE TO FORTUNE BRANDS		$ 434.9	$ 361.8	$ 505.4
[1] Income tax (expense) benefit on unrealized (losses) gains on derivatives of $0.9 million, $(1.4) million and $0.9 million and on defined benefit plans of $3.8 million, $0.9 million and $(0.4) million in 2019, 2018 and 2017, respectively.

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