Fair Value Measurements - Fair Values of Financial Instruments not Recorded at Fair Value (Detail) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2022	Dec. 31, 2021
4.5% Senior Notes due 2023
Fair Value Measurements [Line Items]
Debt Instrument, stated interest rate	4.50%
Debt Instrument, Maturity Date, Description	2023
3.8% Senior Notes due 2024
Fair Value Measurements [Line Items]
Debt Instrument, stated interest rate	3.80%
Debt Instrument, Maturity Date, Description	2024
4.375% Senior Notes Due 2028
Fair Value Measurements [Line Items]
Debt Instrument, stated interest rate	4.375%
Debt Instrument, Maturity Date, Description	2028
4.9% Senior Notes due 2044
Fair Value Measurements [Line Items]
Debt Instrument, stated interest rate	4.90%
Debt Instrument, Maturity Date, Description	2044
Senior Notes due 2031
Fair Value Measurements [Line Items]
Debt Instrument, stated interest rate	5.75%
Debt Instrument, Maturity Date, Description	2031
Five Point Seven Five Percent Senior Notes due 2031
Fair Value Measurements [Line Items]
Debt Instrument, stated interest rate	5.75%
Debt Instrument, Maturity Date, Description	2031
Carrying Amount
Fair Value Measurements [Line Items]
Credit facility	$ 0	$ 500,000
Notes payable	21,207	22,356
Total debt	6,299,991	6,828,892
Carrying Amount \| 4 1/2% Senior Notes Due 2023
Fair Value Measurements [Line Items]
Senior notes	635,056	648,078
Carrying Amount \| 3.8% Senior Notes due 2024
Fair Value Measurements [Line Items]
Senior notes	890,819	908,061
Carrying Amount \| 4.375% Senior Notes Due 2028
Fair Value Measurements [Line Items]
Senior notes	992,471	991,880
Carrying Amount \| 4.9% Senior Notes due 2044
Fair Value Measurements [Line Items]
Senior notes	692,155	692,056
Carrying Amount \| Senior Notes due 2031
Fair Value Measurements [Line Items]
Senior notes	1,483,070	1,482,319
Carrying Amount \| Two Point Two Six Eight Percent Senior Notes due 2026
Fair Value Measurements [Line Items]
Senior notes	793,337	792,621
Carrying Amount \| Two Point Eight Seven Five Percent Senior Notes due 2032
Fair Value Measurements [Line Items]
Senior notes	791,876	791,521
Estimated Fair Value
Fair Value Measurements [Line Items]
Credit facility	0	500,000
Notes payable	19,800	22,000
Total debt	5,820,800	7,351,100
Estimated Fair Value \| 4 1/2% Senior Notes Due 2023
Fair Value Measurements [Line Items]
Senior notes	636,900	670,200
Estimated Fair Value \| 3.8% Senior Notes due 2024
Fair Value Measurements [Line Items]
Senior notes	885,300	950,000
Estimated Fair Value \| 4.375% Senior Notes Due 2028
Fair Value Measurements [Line Items]
Senior notes	939,900	1,082,100
Estimated Fair Value \| 4.9% Senior Notes due 2044
Fair Value Measurements [Line Items]
Senior notes	555,200	781,500
Estimated Fair Value \| Senior Notes due 2031
Fair Value Measurements [Line Items]
Senior notes	1,447,300	1,769,600
Estimated Fair Value \| Two Point Two Six Eight Percent Senior Notes due 2026
Fair Value Measurements [Line Items]
Senior notes	708,500	795,200
Estimated Fair Value \| Two Point Eight Seven Five Percent Senior Notes due 2032
Fair Value Measurements [Line Items]
Senior notes	$ 627,900	$ 780,500

Fair Value Measurements [Line Items]

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

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

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- Definition

Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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- Definition

Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.

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