FAIR VALUE MEASUREMENTS - Schedule of Assets and Liabilities Measured at Fair Value (Details) - Recurring - USD ($) $ in Millions	Jun. 15, 2019	Feb. 23, 2019
Assets:
Short-term investments	$ 20.3	$ 23.1
Non-current investments	87.7	84.2
Total	337.3	596.3
Liabilities:
Derivative contracts	55.6	21.1
Total	55.6	21.1
Quoted prices in active markets for identical assets (Level 1)
Assets:
Short-term investments	18.0	21.0
Non-current investments	33.0	30.5
Total	280.3	540.5
Liabilities:
Derivative contracts	0.0	0.0
Total	0.0	0.0
Significant observable inputs (Level 2)
Assets:
Short-term investments	2.3	2.1
Non-current investments	54.7	53.7
Total	57.0	55.8
Liabilities:
Derivative contracts	55.6	21.1
Total	55.6	21.1
Significant unobservable inputs (Level 3)
Assets:
Short-term investments	0.0	0.0
Non-current investments	0.0	0.0
Total	0.0	0.0
Liabilities:
Derivative contracts	0.0	0.0
Total	0.0	0.0
Money market
Assets:
Money market	229.3	489.0
Money market | Quoted prices in active markets for identical assets (Level 1)
Assets:
Money market	229.3	489.0
Money market | Significant observable inputs (Level 2)
Assets:
Money market	0.0	0.0
Money market | Significant unobservable inputs (Level 3)
Assets:
Money market	$ 0.0	$ 0.0