INCOME TAXES. (Provision for Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current income taxes
U.S. federal	$ 547.1	$ 490.9	$ 484.2
State and local	135.2	135.9	138.7
Foreign	22.9	18.3	28.5
Deferred income taxes (benefits)	13.7	33.3	(35.5)
Total	$ 718.9	$ 678.4	$ 615.9

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.

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Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

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Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

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