Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 01, 2024	Nov. 26, 2023	Nov. 27, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive (loss) income at beginning period	$ 2,046.4
Other comprehensive (loss) income before reclassifications	(70.3)	$ 23.6	$ (12.1)
Amounts reclassified from accumulated other comprehensive loss	26.7	7.2	(12.3)
Adjustment of accumulated other comprehensive gain to retained earnings			(2.9)
Net increase (decrease) in other comprehensive (loss) income	(43.6)		(27.3)
Accumulated other comprehensive (loss) income at ending period	1,970.5	2,046.4
Pension and Postretirement Benefits(1)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive (loss) income at beginning period	(153.2)	(179.5)	(195.5)
Other comprehensive (loss) income before reclassifications	3.1	(1.4)	7.5
Amounts reclassified from accumulated other comprehensive loss	8.9	27.7	8.5
Adjustment of accumulated other comprehensive gain to retained earnings			0.0
Net increase (decrease) in other comprehensive (loss) income	12.0	26.3	16.0
Accumulated other comprehensive (loss) income at ending period	(141.2)	(153.2)	(179.5)
Derivative Instruments(2)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive (loss) income at beginning period	(42.0)	7.2	(20.9)
Other comprehensive (loss) income before reclassifications	15.2	(28.1)	48.9
Amounts reclassified from accumulated other comprehensive loss	17.8	(21.1)	(20.8)
Adjustment of accumulated other comprehensive gain to retained earnings			0.0
Net increase (decrease) in other comprehensive (loss) income	33.0	(49.2)	28.1
Accumulated other comprehensive (loss) income at ending period	(9.0)	(42.0)	7.2
Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive (loss) income at beginning period	(195.7)	(248.7)	(196.8)
Other comprehensive (loss) income before reclassifications	(88.6)	53.0	(51.9)
Amounts reclassified from accumulated other comprehensive loss	0.0	0.0	0.0
Adjustment of accumulated other comprehensive gain to retained earnings			0.0
Net increase (decrease) in other comprehensive (loss) income	(88.6)	53.0	(51.9)
Accumulated other comprehensive (loss) income at ending period	(284.3)	(195.7)	(248.7)
Unrealized Gain (Loss) on Marketable Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive (loss) income at beginning period	0.0	(0.7)	18.8
Other comprehensive (loss) income before reclassifications	0.0	0.1	(16.6)
Amounts reclassified from accumulated other comprehensive loss	0.0	0.6	0.0
Adjustment of accumulated other comprehensive gain to retained earnings			(2.9)
Net increase (decrease) in other comprehensive (loss) income	0.0	0.7	(19.5)
Accumulated other comprehensive (loss) income at ending period	0.0	0.0	(0.7)
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive (loss) income at beginning period	(390.9)	(421.7)	(394.4)
Net increase (decrease) in other comprehensive (loss) income		30.8
Accumulated other comprehensive (loss) income at ending period	$ (434.5)	$ (390.9)	$ (421.7)