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Leases - Maturities (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases
Operating lease cost	$ 155.0	$ 140.0	$ 132.0
Finance lease cost	58.0	$ 51.0	$ 48.0
Operating
2022	75.0
2023	68.0
2024	61.0
2025	51.0
2026	42.0
Thereafter	410.0
Total undiscounted lease payments	707.0
Less: interest	(184.0)
Discounted lease liabilities	523.0
Financing
2022	55.0
2023	50.0
2024	44.0
2025	40.0
2026	36.0
Thereafter	209.0
Total undiscounted lease payments	434.0
Less: interest	(96.0)
Discounted lease liabilities	$ 338.0

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