GENERAL AND SIGNIFICANT ACCOUNTING POLICIES - RECOGNITION OF REVENUES AND EXPENSES (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Total	$ 1,114.8	$ 1,071.6	$ 3,541.4	$ 2,658.3
Ocean Transportation
Total	918.5	863.5	2,911.6	2,106.9
Logistics
Total	196.3	208.1	629.8	551.4
Ocean. Transportation.
Ocean Transportation services	908.4	855.2	2,885.3	2,083.8
Terminal and other related services	5.4	4.8	13.8	12.5
Fuel sales	3.2	1.9	7.9	5.1
Vessel management and related services	1.5	1.6	4.6	5.5
Total	918.5	863.5	$ 2,911.6	2,106.9
Percentage of ocean transportation revenues and fuel sales denominated in foreign currency			3.00%
Logistics.
Transportation Brokerage and Freight Forwarding Services	169.2	186.1	$ 548.5	495.9
Warehousing and distribution services	15.5	12.2	41.4	31.8
Supply chain management and other services	11.6	9.8	39.9	23.7
Total	$ 196.3	$ 208.1	$ 629.8	$ 551.4
Percentage of transportation brokerage and freight forwarding services revenue denominated in foreign currency			6.50%