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Debt - Narrative (Details) - USD ($) |  |  |  | 6 Months Ended |
--- | --- | --- | --- | --- | ---
Apr. 26, 2022 | Mar. 22, 2021 | Mar. 04, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Mar. 13, 2019
Debt |  |  |  |  |  |
Proceeds from issuance of debt |  |  | $ 1,495,000,000 |  |  |
Repayments of notes payable |  |  |  | $ 0 | $ 1,326,000,000 |
Gain (loss) on extinguishment of debt |  | $ 168,000,000 |  |  |  |
1.5 Notes and Debentures Due February 15, 2028 |  |  |  |  |  |
Debt |  |  |  |  |  |
Debt instrument stated interest rate |  |  | 1.50% |  |  |
Long-term debt, gross |  |  | $ 600,000,000 |  |  |
2.0% Notes and Debentures Due February 15, 2031 |  |  |  |  |  |
Debt |  |  |  |  |  |
Debt instrument stated interest rate |  |  | 2.00% |  |  |
Long-term debt, gross |  |  | $ 600,000,000 |  |  |
3.125 Notes and Debentures Due February 15, 2051 |  |  |  |  |  |
Debt |  |  |  |  |  |
Debt instrument stated interest rate |  |  | 3.125% |  |  |
Long-term debt, gross |  |  | $ 300,000,000 |  |  |
5.95 Notes and Debentures Due March 15, 2022 |  |  |  |  |  |
Debt |  |  |  |  |  |
Debt instrument stated interest rate |  | 5.95% |  |  |  |
Repayments of notes payable |  | $ 326,000,000 |  |  |  |
4.45 Notes and Debentures Due April 1, 2025 |  |  |  |  |  |
Debt |  |  |  |  |  |
Debt instrument stated interest rate |  | 4.45% |  |  |  |
Repayments of notes payable |  | $ 500,000,000 |  |  |  |
4.375 Notes and Debentures Due April 1, 2026 |  |  |  |  |  |
Debt |  |  |  |  |  |
Debt instrument stated interest rate |  | 4.375% |  |  |  |
Repayments of notes payable |  | $ 500,000,000 |  |  |  |
2022 Credit Agreement | Line of Credit |  |  |  |  |  |
Debt |  |  |  |  |  |
Maximum net leverage ratio | 4.0 |  |  |  |  |
Minimum interest coverage ratio | 2.5 |  |  |  |  |
2022 Credit Agreement | Federal funds effective rate | Line of Credit |  |  |  |  |  |
Debt |  |  |  |  |  |
Interest rate, basis spread (as a percent) | 0.50% |  |  |  |  |
2022 Credit Agreement | SOFR rate | Line of Credit | Variable Rate Component One |  |  |  |  |  |
Debt |  |  |  |  |  |
Interest rate, basis spread (as a percent) | 0.10% |  |  |  |  |
2022 Credit Agreement | SOFR rate | Line of Credit | Variable Rate Component One |  |  |  |  |  |
Debt |  |  |  |  |  |
Interest rate, basis spread (as a percent) | 1.00% |  |  |  |  |
2022 Credit Agreement | CDOR rate | Line of Credit |  |  |  |  |  |
Debt |  |  |  |  |  |
Interest rate, basis spread (as a percent) | 1.00% |  |  |  |  |
2022 Credit Agreement | Revolver | Line of Credit |  |  |  |  |  |
Debt |  |  |  |  |  |
Borrowing capacity, maximum | $ 1,000,000,000 |  |  |  |  |
Increase in maximum borrowing capacity | 500,000,000 |  |  |  |  |
2022 Credit Agreement | Swingline loans | Line of Credit |  |  |  |  |  |
Debt |  |  |  |  |  |
Borrowing capacity, maximum | 125,000,000 |  |  |  |  |
2022 Credit Agreement | Letters of credit | Line of Credit |  |  |  |  |  |
Debt |  |  |  |  |  |
Borrowing capacity, maximum | 25,000,000 |  |  |  |  |
Letters of credit outstanding, amount |  |  |  | $ 0 |  |
2022 Credit Agreement | Revolving Credit Facility, Foreign Denominated Loans | Line of Credit |  |  |  |  |  |
Debt |  |  |  |  |  |
Borrowing capacity, maximum | 500,000,000 |  |  |  |  |
2019 Credit Agreement | Line of Credit |  |  |  |  |  |
Debt |  |  |  |  |  |
Borrowing capacity, maximum |  |  |  |  |  | $ 1,000,000,000
Unsecured Term Loan |  |  |  |  |  |
Debt |  |  |  |  |  |
Debt instrument, face amount | $ 500,000,000 |  |  |  |  |
Unsecured Term Loan | SOFR rate |  |  |  |  |  |
Debt |  |  |  |  |  |
Debt instrument stated interest rate | 0.70% |  |  |  |  |

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 + Details
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