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Debt - Summary of Debt (Detail) - USD ($) $ in Millions | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Debt Instrument [Line Items] |  |
Other debt | $ 16 | $ 19
Debt |  |
Total debt | 5,492 | 5,607
Short-term debt and current portion of long-term debt | (357) | (466)
Long-term debt | 5,135 | 5,141
3.15% senior notes due 2021 |  |
Debt Instrument [Line Items] |  |
Senior notes | 0 | 94
3.75% senior notes due 2021 |  |
Debt Instrument [Line Items] |  |
Senior notes | 354 | 369
4.00% senior notes due 2022 |  |
Debt Instrument [Line Items] |  |
Senior notes | 250 | 250
3.85% senior notes due 2023 |  |
Debt Instrument [Line Items] |  |
Senior notes | 1,085 | 1,090
4.00% senior notes due 2024 |  |
Debt Instrument [Line Items] |  |
Senior notes | 200 | 200
4.875% senior notes due 2025 |  |
Debt Instrument [Line Items] |  |
Senior notes | 493 | 492
3.90% senior notes due 2025 |  |
Debt Instrument [Line Items] |  |
Senior notes | 47 | 47
4.20% senior notes due 2026 |  |
Debt Instrument [Line Items] |  |
Senior notes | 1,974 | 1,973
5.375% senior notes due 2036 |  |
Debt Instrument [Line Items] |  |
Senior notes | 416 | 416
5.50% senior notes due 2046 |  |
Debt Instrument [Line Items] |  |
Senior notes | $ 657 | $ 657

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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + 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)(3) -URI http://asc.fasb.org/extlink&oid=120520924&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(a)(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: 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 http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 4: 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 http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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