Debt Level 4 (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Repayments of Debt	$ 736,000,000	$ 1,406,400,000
Repayments of Long-term Debt	36,158,000	34,489,000	$ 25,471,000
Repayments of Other Debt	3,700,000	2,000,000
Losses on early extinguishment of debt, net	5,226,000	18,428,000	16,637,000
Other Notes Payable	48,113,000	51,766,000
Total debt	3,966,320,000	3,742,534,000
Current maturities of long-term debt	(65,016,000)	(228,352,000)
Less current maturities	65,016,000	228,352,000
Total long-term debt	$ 3,901,304,000	$ 3,514,182,000
Debt, Weighted Average Interest Rate	3.70%	3.62%
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	79.00%	66.00%
Next Twelve Months	$ 65,016,000
Year Two	85,299,000
Year Three	671,611,000
Year Four	40,709,000
Year Five	1,986,000
After Year Five	3,101,699,000
Long-term Debt, Gross	3,966,320,000
Letters of Credit, Maximum Borrowing Capacity	34,000,000	$ 34,000,000
Interest Paid, Including Capitalized Interest, Operating and Investing Activities	142,145,000	152,524,000	$ 190,672,000
Payments in 2022	148,490,000
Payments in 2023	147,524,000
Payments in 2024	141,477,000
Payments in 2025	137,300,000
Payments in 2026	136,738,000
Payments in 2027 and thereafter	367,756,000
Cash Interest Payments Expected Payments Total	1,079,285,000
Unamortized Debt Issuance Expense	(45,100,000)	(36,739,000)
Bank credit facility	155,000,000	525,000,000
Finance Lease, Liability	136,847,000	148,864,000
Proceeds from Issuance of Debt	975,000,000	1,585,000,000
Repayments of Lines of Credit	545,000,000.0	505,000,000.0
Redemption Premium	4,800,000	16,100,000
Pledged Assets Separately Reported, Finance Receivables Pledged as Collateral, at Fair Value	400,000	2,000,000
Pledged Assets, Other, Not Separately Reported on Statement of Financial Position	$ 1,100,000	1,200,000
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	100000.00%
Line of Credit Facility, Remaining Borrowing Capacity	$ 811,000,000.0
Debt Issuance Costs, Line of Credit Arrangements, Net	13,600,000	14.5
Repayments of Lines of Credit	545,000,000.0	505,000,000.0
Redemption Premium	4,800,000	16,100,000
Pledged Assets Separately Reported, Finance Receivables Pledged as Collateral, at Fair Value	400,000	2,000,000
Pledged Assets, Other, Not Separately Reported on Statement of Financial Position	1,100,000	1,200,000
April 2027 [Member]
Debt Instrument [Line Items]
Repayments of Debt		800,000
May 2024 [Member]
Debt Instrument [Line Items]
Notes Payable to Bank, Noncurrent	568,750,000
Bank credit facility	155,000,000	525,000,000
Debt Instrument, Periodic Payment	32,500,000	32,500,000
Debt Instrument, Periodic Payment	32,500,000	32,500,000
Term Loan December 2022 [Member]
Debt Instrument [Line Items]
Notes Payable to Bank, Noncurrent		601,250,000
August 2030 [Member]
Debt Instrument [Line Items]
Senior Notes		850,000,000.0
May 2031
Debt Instrument [Line Items]
Senior Notes	800,000,000.0
Unsecured Debt [Member]
Debt Instrument [Line Items]
Unamortized pricing discounts and other	0	(317,000)
Unsecured Debt [Member] | November 2021 [Member]
Debt Instrument [Line Items]
Senior Notes	0	150,000,000
Unsecured Debt [Member] | April 2027 [Member]
Debt Instrument [Line Items]
Senior Notes	152,710,000	152,710,000
Unsecured Debt [Member] | December 2027 [Member]
Debt Instrument [Line Items]
Senior Notes	550,000,000	550,000,000
Unsecured Debt [Member] | June 2029 [Member]
Debt Instrument [Line Items]
Senior Notes	750,000,000	750,000,000
Unsecured Debt [Member] | August 2030 [Member]
Debt Instrument [Line Items]
Senior Notes	850,000,000	850,000,000
Unsecured Debt [Member] | May 2031
Debt Instrument [Line Items]
Senior Notes	$ 800,000,000	$ 0