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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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No definition available.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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No definition available.

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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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No definition available.

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Weighted average interest rate of long-term debt outstanding calculated over time.

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No definition available.

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Debt (Narrative) (Details) - USD ($)	12 Months Ended
Debt (Narrative) (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Long-term Debt, Fiscal Year Maturity [Abstract]
2023	$ 0
2024	0
2025	250,000,000
2026	650,000,000
2027	0
Thereafter	$ 4,100,000,000
Long-term debt, weighted average interest rate, over time	4.30%	4.40%	4.40%
Cash payments for interest	$ 223,700,000	$ 221,600,000	$ 234,500,000
Revolving Credit Facility
Long-term Debt, Fiscal Year Maturity [Abstract]
Maximum borrowing capacity	$ 1,000,000,000
Commitment fee percentage	0.125%
Borrowings outstanding	$ 0	0
Letter of credit obligations	$ 3,500,000	$ 3,500,000
Consolidated debt to EBITDA ratio	5.0
Revolving Credit Facility \| SOFR
Long-term Debt, Fiscal Year Maturity [Abstract]
Basis spread on variable rate	0.10%
Revolving Credit Facility \| Line Of Credit Facility, Tranche One
Long-term Debt, Fiscal Year Maturity [Abstract]
Maximum borrowing capacity	$ 88,100,000
Revolving Credit Facility \| Line Of Credit Facility, Tranche Two
Long-term Debt, Fiscal Year Maturity [Abstract]
Maximum borrowing capacity	$ 911,900,000
Revolving Credit Facility \| Minimum
Long-term Debt, Fiscal Year Maturity [Abstract]
Basis spread on variable rate	0.875%
Commitment fee percentage	0.075%
Revolving Credit Facility \| Maximum
Long-term Debt, Fiscal Year Maturity [Abstract]
Basis spread on variable rate	1.50%
Commitment fee percentage	0.20%
Commercial Paper
Long-term Debt, Fiscal Year Maturity [Abstract]
Maximum borrowing capacity	$ 1,000,000,000
Borrowings outstanding	$ 32,000,000
Long-term debt, weighted average interest rate, over time	1.20%	0.20%
Commercial Paper \| Maximum
Long-term Debt, Fiscal Year Maturity [Abstract]
Term of contract	397 days