Comprehensive Income (Loss) Attributable to CBI - Reconciliation of Net Income (Loss) Attributable to CBI to Comprehensive Income (Loss) Attributable to CBI (Details) - USD ($) $ in Millions	3 Months Ended
	May 31, 2025	May 31, 2024
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net income (loss) attributable to CBI	$ 516.1	$ 877.0
Other comprehensive income (loss) attributable to CBI
Other comprehensive income (loss) attributable to CBI, net of tax amount	364.3	(8.7)
Comprehensive income (loss) attributable to CBI	866.8	868.0
Accumulated Other Comprehensive Income (Loss)
Other comprehensive income (loss) attributable to CBI
Net gain (loss), net of tax amount	355.7
Reclassification adjustments, net of tax amount	(5.0)
Other comprehensive income (loss) attributable to CBI, before tax amount	365.7	(10.7)
Other comprehensive income (loss) attributable to CBI, tax (expense) benefit	(15.0)	1.7
Other comprehensive income (loss) attributable to CBI, net of tax amount	350.7	(9.0)
Accumulated Other Comprehensive Income (Loss) | Share of OCI of Equity Method Investments
Other comprehensive income (loss) attributable to CBI
Net gain (loss), before tax amount	0.0	0.0
Net gain (loss), tax (expense) benefit	0.0	0.0
Net gain (loss), net of tax amount	0.0	0.0
Reclassification adjustments, before tax amount	0.3	(10.3)
Reclassification adjustments, tax (expense) benefit	(0.1)	0.0
Reclassification adjustments, net of tax amount	0.2	(10.3)
Other comprehensive income (loss) attributable to CBI, before tax amount	0.3	(10.3)
Other comprehensive income (loss) attributable to CBI, tax (expense) benefit	(0.1)	0.0
Other comprehensive income (loss) attributable to CBI, net of tax amount	0.2	(10.3)
Foreign Currency Translation Adjustments
Other comprehensive income (loss) attributable to CBI
Net gain (loss), before tax amount	243.5	13.5
Net gain (loss), tax (expense) benefit	0.0	0.0
Net gain (loss), net of tax amount	243.5	13.5
Reclassification adjustments, before tax amount	0.0	0.0
Reclassification adjustments, tax (expense) benefit	0.0	0.0
Reclassification adjustments, net of tax amount	0.0	0.0
Other comprehensive income (loss) attributable to CBI, before tax amount	243.5	13.5
Other comprehensive income (loss) attributable to CBI, tax (expense) benefit	0.0	0.0
Other comprehensive income (loss) attributable to CBI, net of tax amount	243.5	13.5
Unrealized Net Gain (Loss) on Derivative Instruments
Other comprehensive income (loss) attributable to CBI
Net gain (loss), before tax amount	130.6
Net gain (loss), tax (expense) benefit	(16.1)
Net gain (loss), net of tax amount	114.5
Reclassification adjustments, before tax amount	(5.7)
Reclassification adjustments, tax (expense) benefit	0.5
Reclassification adjustments, net of tax amount	(5.2)
Other comprehensive income (loss) attributable to CBI, before tax amount	124.9
Other comprehensive income (loss) attributable to CBI, tax (expense) benefit	(15.6)
Other comprehensive income (loss) attributable to CBI, net of tax amount	109.3
Pension/ Postretirement Adjustments
Other comprehensive income (loss) attributable to CBI
Net gain (loss), net of tax amount	0.0
Reclassification adjustments, net of tax amount	0.0
Other comprehensive income (loss) attributable to CBI, net of tax amount	0.0
Unrealized Gain (Loss) on Net Investment Hedges
Other comprehensive income (loss) attributable to CBI
Net gain (loss), before tax amount	(3.0)
Net gain (loss), tax (expense) benefit	0.7
Net gain (loss), net of tax amount	(2.3)
Reclassification adjustments, before tax amount	0.0
Reclassification adjustments, tax (expense) benefit	0.0
Reclassification adjustments, net of tax amount	0.0
Other comprehensive income (loss) attributable to CBI, before tax amount	(3.0)
Other comprehensive income (loss) attributable to CBI, tax (expense) benefit	0.7
Other comprehensive income (loss) attributable to CBI, net of tax amount	(2.3)
Accumulated Net Gain (Loss) on Derivative Instruments
Other comprehensive income (loss) attributable to CBI
Net gain (loss), before tax amount		28.2
Net gain (loss), tax (expense) benefit		(3.3)
Net gain (loss), net of tax amount	112.2	24.9
Reclassification adjustments, before tax amount		(42.1)
Reclassification adjustments, tax (expense) benefit		5.0
Reclassification adjustments, net of tax amount	(5.2)	(37.1)
Other comprehensive income (loss) attributable to CBI, before tax amount		(13.9)
Other comprehensive income (loss) attributable to CBI, tax (expense) benefit		1.7
Other comprehensive income (loss) attributable to CBI, net of tax amount	$ 107.0	$ (12.2)