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LONG-TERM DEBT - SCHEDULE OF LONG-TERM DEBT (Details) $ in Millions | 1 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Aug. 31, 2020 JPY (¥) numberOfPayments | Feb. 29, 2020 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | May 31, 2017 USD ($) | May 31, 2016 USD ($) | Jun. 30, 2015 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Total |  |  | $ 2,421 | $ 2,181 |  |  |  |
Long-Term Debt, Gross, Fair Value Disclosure |  |  | 2,983 | 2,440 |  |  |  |
Other |  |  | 34 | 42 |  |  |  |
Other Long-Term Debt, Fair Value Disclosure |  |  | 34 | 42 |  |  |  |
Less current maturities |  |  | (8) | (246) |  |  |  |
Long-Term Debt, Current Maturities, Fair Value Disclosure |  |  | (8) | (246) |  |  |  |
Debt issuance costs and discounts, net of amortization |  |  | (24) | (21) |  |  |  |
Debt Instrument, Unamortized, Discount (Premium) And Debt Issuance Costs, Net, Fair Value |  |  | (24) | (21) |  |  |  |
Long-term debt (less current maturities and debt issuance costs and discounts) |  |  | 2,389 | 1,914 |  |  |  |
Long-Term Debt, Excluding Current Maturities, Fair Value Disclosure |  |  | 2,951 | 2,173 |  |  |  |
Senior notes [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Face amount of debt |  |  |  |  | $ 1,800 |  |  |
British pound term loan [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Total |  |  | 0 | 170 |  |  |  |
Long-term Debt, Fair Value |  |  | 0 | 170 |  |  |  |
Euro term loan [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Total |  |  | 0 | 123 |  |  |  |
Long-term Debt, Fair Value |  |  | 0 | 123 |  |  |  |
Japanese Yen Term Loan |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Total |  |  | 87 | 0 |  |  |  |
Long-term Debt, Fair Value |  |  | 87 | 0 |  |  |  |
Canadian dollar revolving credit facility [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Total |  |  | 0 | 46 |  |  |  |
Long-term Debt, Fair Value |  |  | 0 | 46 |  |  |  |
Unsecured Senior Notes, 4.60% [Member] | Senior notes [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Total |  |  | 1,000 | 1,000 |  |  |  |
Long-term Debt, Fair Value |  |  | $ 1,343 | 1,194 |  |  |  |
Stated interest rate |  |  | 4.60% |  |  |  |  | 4.60%
Face amount of debt |  |  |  |  |  |  |  | $ 1,000
Unsecured Senior Notes, 3.75% [Member] | Senior notes [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Total |  |  | $ 400 | 400 |  |  |  |
Long-term Debt, Fair Value |  |  | $ 479 | 416 |  |  |  |
Stated interest rate |  |  | 3.75% |  |  |  | 3.75% |
Face amount of debt |  |  |  |  |  |  | $ 400 |
Unsecured Senior Notes, 4.20% [Member] | Senior notes [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Total |  |  | $ 400 | 400 |  |  |  |
Long-term Debt, Fair Value |  |  | $ 514 | 449 |  |  |  |
Stated interest rate |  |  | 4.20% |  |  | 4.20% |  |
Face amount of debt |  |  |  |  |  | $ 400 |  |
Unsecured Senior Notes, 1.85% | Senior notes [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Total |  |  | $ 500 | 0 |  |  |  |
Long-term Debt, Fair Value |  |  | $ 526 | $ 0 |  |  |  |
Debt issuance costs and discounts, net of amortization |  | $ (5) |  |  |  |  |  |
Stated interest rate |  | 1.85% | 1.85% |  |  |  |  |
Debt Instrument, Redemption Price, Percentage Upon Change Of Control |  | 101.00% |  |  |  |  |  |
Basis points |  | 0.10% |  |  |  |  |  |
Debt redemption percentage |  | 100.00% |  |  |  |  |  |
Face amount of debt |  | $ 500 |  |  |  |  |  |
Term Loan Agreement, 0.05% [Member] | Japanese Yen Term Loan |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Face amount of debt | ¥ | ¥ 9,000,000,000 |  |  |  |  |  |  |
Debt Instrument, Number Of Semi-Annual Principal Payments | numberOfPayments | 4 |  |  |  |  |  |  |
Long-term Debt, Weighted Average Interest Rate, over Time | 0.05% |  |  |  |  |  |  |

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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 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(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 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://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 http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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