Debt and Credit Agreements - Narrative (Details) - USD ($)	Mar. 10, 2023	Sep. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Long-term debt		$ 2,075,000,000	$ 2,075,000,000
3.90% senior notes due May 15, 2027
Debt Instrument [Line Items]
Stated percentage		3.90%
4.375% senior notes due March 15, 2029
Debt Instrument [Line Items]
Stated percentage		4.375%
Senior Notes | 3.65% weighted-average private placement senior notes
Debt Instrument [Line Items]
Weighted average interest rate		3.65%
Long-term debt		$ 825,000,000	825,000,000
Senior Notes | 3.90% senior notes due May 15, 2027
Debt Instrument [Line Items]
Long-term debt		750,000,000	750,000,000
Senior Notes | 4.375% senior notes due March 15, 2029
Debt Instrument [Line Items]
Long-term debt		500,000,000	500,000,000
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt		0	$ 0
Remaining borrowing capacity		$ 1,500,000,000
Line of Credit | Revolving Credit Facility | JPMorgan Chase Bank, N.A
Debt Instrument [Line Items]
Borrowing base	$ 1,500,000,000
Additional borrowing base	$ 500,000,000
Agreement extended period	1 year
Lenders holding percent	50.00%
Minimum required asset coverage ratio	3.0
Other debt outstanding	$ 75,000,000
Total capitalization	65.00%
Line of Credit | Revolving Credit Facility | JPMorgan Chase Bank, N.A | Minimum
Debt Instrument [Line Items]
Commitment fee on unused credit	0.10%
Line of Credit | Revolving Credit Facility | JPMorgan Chase Bank, N.A | Maximum
Debt Instrument [Line Items]
Commitment fee on unused credit	0.275%
Line of Credit | Revolving Credit Facility | JPMorgan Chase Bank, N.A | SOFR
Debt Instrument [Line Items]
Basis spread on variable rate	10.00%
Line of Credit | Revolving Credit Facility | JPMorgan Chase Bank, N.A | SOFR | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Line of Credit | Revolving Credit Facility | JPMorgan Chase Bank, N.A | SOFR | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate	1.75%
Line of Credit | Revolving Credit Facility | JPMorgan Chase Bank, N.A | Base Rate | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	0.00%
Line of Credit | Revolving Credit Facility | JPMorgan Chase Bank, N.A | Base Rate | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate	0.75%
Line of Credit | Letter of Credit | JPMorgan Chase Bank, N.A
Debt Instrument [Line Items]
Borrowing base	$ 500,000,000
Line of Credit | Swingline Sub Facility | Revolving Credit Facility | JPMorgan Chase Bank, N.A
Debt Instrument [Line Items]
Borrowing base	$ 100,000,000