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Borrowings and Lines of Credit (Long-Term Debt) (Details) € in Millions, $ in Millions | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2020 USD ($) | Jun. 30, 2021 USD ($) | Jun. 30, 2020 USD ($) | Jun. 30, 2021 EUR (€) | Dec. 31, 2020 USD ($) | Jun. 30, 2020 EUR (€)
Debt Instrument [Line Items] |  |  |  |  |  |
Proceeds from Issuance of Debt |  | $ 0 |  |  |  |
Extinguishment of Debt, Amount | $ 43 |  | $ 703 |  |  |
Other (including finance leases) |  | 273 |  |  | $ 292 |
Total principal long-term debt |  | 31,187 |  |  | 31,470 |
Other (fair market value adjustments, (discounts)/premiums, and debt issuance costs) |  | 99 |  |  | 106 |
Total long-term debt |  | 31,286 |  |  | 31,576 |
Less: current portion |  | 1,370 |  |  | 550 |
Long-term debt, net of current portion |  | 29,916 |  |  | 31,026 |
Otis 3-Year Term Loan due 2023 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  | $ 1,000 |  |  |
Debt Instrument, Maturity Date, Description |  |  | 2023 |  |  |
Carrier 3-Year Term Loan due 2023 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  | $ 1,750 |  |  |
Debt Instrument, Maturity Date, Description |  |  | 2023 |  |  |
Notes 1.923% Due 2023 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  | $ 500 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 1.923%
Debt Instrument, Maturity Date, Description |  |  | 2023 |  |  |
Libor plus 0.45% floating rates due 2023 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  | $ 500 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 0.45%
Debt Instrument, Maturity Date, Description |  |  | 2023 |  |  |
Notes 2.056% Due 2025 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  | $ 1,300 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 2.056%
Debt Instrument, Maturity Date, Description |  |  | 2025 |  |  |
Notes 2.242% Due 2025 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  | $ 2,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 2.242%
Debt Instrument, Maturity Date, Description |  |  | 2025 |  |  |
Notes 2.293% Due 2027 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  | $ 500 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 2.293%
Debt Instrument, Maturity Date, Description |  |  | 2027 |  |  |
Notes 2.493% Due 2027 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  | $ 1,250 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 2.493%
Debt Instrument, Maturity Date, Description |  |  | 2027 |  |  |
Notes 2.565% Due 2030 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  | $ 1,500 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 2.565%
Debt Instrument, Maturity Date, Description |  |  | 2030 |  |  |
Notes 2.722% Due 2030 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  | $ 2,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 2.722%
Debt Instrument, Maturity Date, Description |  |  | 2030 |  |  |
Notes 3.112% Due 2040 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  | $ 750 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 3.112%
Debt Instrument, Maturity Date, Description |  |  | 2040 |  |  |
Notes 3.377% Due 2040 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  | $ 1,500 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 3.377%
Debt Instrument, Maturity Date, Description |  |  | 2040 |  |  |
Notes 3.362% Due 2050 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  | $ 750 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 3.362%
Debt Instrument, Maturity Date, Description |  |  | 2050 |  |  |
Notes 3.577% Due 2050 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  | $ 2,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 3.577%
Debt Instrument, Maturity Date, Description |  |  | 2050 |  |  |
Notes 8.750% Due 2021 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of Debt |  | $ 250 |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 8.75% |  | 8.75% |  |
Debt Instrument, Maturity Date, Description |  | 2021 |  |  |  |
Long-term Debt, Gross |  | $ 0 |  |  | 250 |
Notes 3.650% Due 2023 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of Debt |  |  | $ 410 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.65% |  | 3.65% |  | 3.65%
Debt Instrument, Maturity Date, Description |  | 2023 | 2023 |  |  |
Long-term Debt, Gross |  | $ 171 |  |  | 171 |
EURIBOR plus 0.20% floating rate notes due 2020 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of Debt |  |  | $ 817 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 0.20%
Debt Instrument, Maturity Date, Description |  |  | 2020 |  |  |
Debt Instrument, Face Amount | € |  |  |  |  |  | € 750
Notes 4.500% Due 2020 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of Debt |  |  | $ 1,250 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 4.50%
Debt Instrument, Maturity Date, Description |  |  | 2020 |  |  |
Note 1.125% Due 2021 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of Debt |  |  | $ 1,082 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 1.125%
Debt Instrument, Maturity Date, Description |  |  | 2021 |  |  |
Long-term Debt, Gross | € |  |  |  |  |  | € 950
Notes 1.250% due 2023 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of Debt |  |  | $ 836 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 1.25%
Debt Instrument, Maturity Date, Description |  |  | 2023 |  |  |
Long-term Debt, Gross | € |  |  |  |  |  | € 750
Notes 1.150% Due 2024 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of Debt |  |  | $ 841 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 1.15%
Debt Instrument, Maturity Date, Description |  |  | 2024 |  |  |
Long-term Debt, Gross | € |  |  |  |  |  | € 750
Notes 1.875% Due 2026 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of Debt |  |  | $ 567 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 1.875%
Debt Instrument, Maturity Date, Description |  |  | 2026 |  |  |
Long-term Debt, Gross | € |  |  |  |  |  | € 500
Notes 1.900% Due 2020 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of Debt |  |  | $ 1,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 1.90%
Debt Instrument, Maturity Date, Description |  |  | 2020 |  |  |
Notes 3.350% Due 2021 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of Debt |  |  | $ 1,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 3.35%
Debt Instrument, Maturity Date, Description |  |  | 2021 |  |  |
LIBOR plus 0.650% floating rate notes due 2021 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of Debt |  |  | $ 750 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 0.65%
Debt Instrument, Maturity Date, Description |  |  | 2021 |  |  |
Notes 1.950% Due 2021 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of Debt |  |  | $ 750 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 1.95%
Debt Instrument, Maturity Date, Description |  |  | 2021 |  |  |
Notes 2.300% Due 2022 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of Debt |  |  | $ 500 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 2.30%
Debt Instrument, Maturity Date, Description |  |  | 2022 |  |  |
Notes 3.100% Due 2022 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of Debt |  |  | $ 2,300 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 3.10%
Debt Instrument, Maturity Date, Description |  |  | 2022 |  |  |
Notes 2.800% Due 2024 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of Debt |  |  | $ 800 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 2.80%
Debt Instrument, Maturity Date, Description |  |  | 2024 |  |  |
Notes 4.875% Due 2020 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of Debt |  |  | $ 171 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 4.875%
Debt Instrument, Maturity Date, Description |  |  | 2020 |  |  |
Notes 3.650% Due 2023 Feb2020 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of Debt |  |  | $ 1,669 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 3.65%
Debt Instrument, Maturity Date, Description |  |  | 2023 |  |  |
Notes 2.650% Due 2026 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of Debt |  |  | $ 431 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 2.65% |  | 2.65% |  | 2.65%
Debt Instrument, Maturity Date, Description |  | 2026 | 2026 |  |  |
Long-term Debt, Gross |  | $ 719 |  |  | 719 |
Notes 3.100% Due 2021 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.10% |  | 3.10% |  |
Debt Instrument, Maturity Date, Description |  | 2021 |  |  |  |
Long-term Debt, Gross |  | $ 250 |  |  | 250 |
Notes 2.800% Due 2022 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 2.80% |  | 2.80% |  |
Debt Instrument, Maturity Date, Description |  | 2022 |  |  |  |
Long-term Debt, Gross |  | $ 1,100 |  |  | 1,100 |
Notes 2.500% Due 2022 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 2.50% |  | 2.50% |  |
Debt Instrument, Maturity Date, Description |  | 2022 |  |  |  |
Long-term Debt, Gross |  | $ 1,100 |  |  | 1,100 |
Notes 3.700% Due 2023 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.70% |  | 3.70% |  |
Debt Instrument, Maturity Date, Description |  | 2023 |  |  |  |
Long-term Debt, Gross |  | $ 400 |  |  | 400 |
Notes 3.200% Due 2024 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.20% |  | 3.20% |  |
Debt Instrument, Maturity Date, Description |  | 2024 |  |  |  |
Long-term Debt, Gross |  | $ 950 |  |  | 950 |
Notes 3.150% Due 2024 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.15% |  | 3.15% |  |
Debt Instrument, Maturity Date, Description |  | 2024 |  |  |  |
Long-term Debt, Gross |  | $ 300 |  |  | 300 |
Notes 3.950% Due 2025 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.95% |  | 3.95% |  |
Debt Instrument, Maturity Date, Description |  | 2025 |  |  |  |
Long-term Debt, Gross |  | $ 1,500 |  |  | 1,500 |
Notes 3.125% Due 2027 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.125% |  | 3.125% |  |
Debt Instrument, Maturity Date, Description |  | 2027 |  |  |  |
Long-term Debt, Gross |  | $ 1,100 |  |  | 1,100 |
Notes 3.500% Due 2027 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.50% |  | 3.50% |  |
Debt Instrument, Maturity Date, Description |  | 2027 |  |  |  |
Long-term Debt, Gross |  | $ 1,300 |  |  | 1,300 |
Notes 7.200% Due 2027 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 7.20% |  | 7.20% |  |
Debt Instrument, Maturity Date, Description |  | 2027 |  |  |  |
Long-term Debt, Gross |  | $ 382 |  |  | 382 |
Notes 7.100% Due 2027 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 7.10% |  | 7.10% |  |
Debt Instrument, Maturity Date, Description |  | 2027 |  |  |  |
Long-term Debt, Gross |  | $ 141 |  |  | 141 |
Notes 6.700% Due 2028 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 6.70% |  | 6.70% |  |
Debt Instrument, Maturity Date, Description |  | 2028 |  |  |  |
Long-term Debt, Gross |  | $ 400 |  |  | 400 |
Notes 7.000% Due 2028 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 7.00% |  | 7.00% |  |
Debt Instrument, Maturity Date, Description |  | 2028 |  |  |  |
Long-term Debt, Gross |  | $ 185 |  |  | 185 |
Notes 4.125% Due 2028 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.125% |  | 4.125% |  |
Debt Instrument, Maturity Date, Description |  | 2028 |  |  |  |
Long-term Debt, Gross |  | $ 3,000 |  |  | 3,000 |
Notes 7.500% Due 2029 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 7.50% |  | 7.50% |  |
Debt Instrument, Maturity Date, Description |  | 2029 |  |  |  |
Long-term Debt, Gross |  | $ 550 |  |  | 550 |
Notes 2.150% Due 2030 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 2.15% |  | 2.15% |  |
Debt Instrument, Maturity Date, Description |  | 2030 |  |  |  |
Long-term Debt, Gross |  | $ 598 |  |  | 612 |
Debt Instrument, Face Amount | € |  |  |  | € 500 |  |
Notes 2.250% Due 2030 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  | $ 1,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 2.25% |  | 2.25% |  | 2.25%
Debt Instrument, Maturity Date, Description |  | 2030 | 2030 |  |  |
Long-term Debt, Gross |  | $ 1,000 |  |  | 1,000 |
Notes 5.400% Due 2035 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 5.40% |  | 5.40% |  |
Debt Instrument, Maturity Date, Description |  | 2035 |  |  |  |
Long-term Debt, Gross |  | $ 600 |  |  | 600 |
Notes 6.050% Due 2036 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 6.05% |  | 6.05% |  |
Debt Instrument, Maturity Date, Description |  | 2036 |  |  |  |
Long-term Debt, Gross |  | $ 600 |  |  | 600 |
Notes 6.800% Due 2036 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 6.80% |  | 6.80% |  |
Debt Instrument, Maturity Date, Description |  | 2036 |  |  |  |
Long-term Debt, Gross |  | $ 134 |  |  | 134 |
Notes 7.000% Due 2038 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 7.00% |  | 7.00% |  |
Debt Instrument, Maturity Date, Description |  | 2038 |  |  |  |
Long-term Debt, Gross |  | $ 159 |  |  | 159 |
Notes 6.125% Due 2038 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 6.125% |  | 6.125% |  |
Debt Instrument, Maturity Date, Description |  | 2038 |  |  |  |
Long-term Debt, Gross |  | $ 1,000 |  |  | 1,000 |
Notes 4.450% Due 2038 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.45% |  | 4.45% |  |
Debt Instrument, Maturity Date, Description |  | 2038 |  |  |  |
Long-term Debt, Gross |  | $ 750 |  |  | 750 |
Notes 5.700% Due 2040 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 5.70% |  | 5.70% |  |
Debt Instrument, Maturity Date, Description |  | 2040 |  |  |  |
Long-term Debt, Gross |  | $ 1,000 |  |  | 1,000 |
Notes 4.875% Due 2040 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.875% |  | 4.875% |  |
Debt Instrument, Maturity Date, Description |  | 2040 |  |  |  |
Long-term Debt, Gross |  | $ 600 |  |  | 600 |
Notes 4.700% Due 2041 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.70% |  | 4.70% |  |
Debt Instrument, Maturity Date, Description |  | 2041 |  |  |  |
Long-term Debt, Gross |  | $ 425 |  |  | 425 |
Notes 4.500% Due 2042 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.50% |  | 4.50% |  |
Debt Instrument, Maturity Date, Description |  | 2042 |  |  |  |
Long-term Debt, Gross |  | $ 3,500 |  |  | 3,500 |
Notes 4.800% Due 2043 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.80% |  | 4.80% |  |
Debt Instrument, Maturity Date, Description |  | 2043 |  |  |  |
Long-term Debt, Gross |  | $ 400 |  |  | 400 |
Notes 4.200% Due 2044 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.20% |  | 4.20% |  |
Debt Instrument, Maturity Date, Description |  | 2044 |  |  |  |
Long-term Debt, Gross |  | $ 300 |  |  | 300 |
Notes 4.150% Due 2045 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.15% |  | 4.15% |  |
Debt Instrument, Maturity Date, Description |  | 2045 |  |  |  |
Long-term Debt, Gross |  | $ 850 |  |  | 850 |
Notes 3.750% Due 2046 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.75% |  | 3.75% |  |
Debt Instrument, Maturity Date, Description |  | 2046 |  |  |  |
Long-term Debt, Gross |  | $ 1,100 |  |  | 1,100 |
Notes 4.050% Due 2047 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.05% |  | 4.05% |  |
Debt Instrument, Maturity Date, Description |  | 2047 |  |  |  |
Long-term Debt, Gross |  | $ 600 |  |  | 600 |
Notes 4.350% Due 2047 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.35% |  | 4.35% |  |
Debt Instrument, Maturity Date, Description |  | 2047 |  |  |  |
Long-term Debt, Gross |  | $ 1,000 |  |  | 1,000 |
Notes 4.625% Due 2048 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.625% |  | 4.625% |  |
Debt Instrument, Maturity Date, Description |  | 2048 |  |  |  |
Long-term Debt, Gross |  | $ 1,750 |  |  | 1,750 |
Notes 3.125% Due 2050 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  | $ 1,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.125% |  | 3.125% |  | 3.125%
Debt Instrument, Maturity Date, Description |  | 2050 | 2050 |  |  |
Long-term Debt, Gross |  | $ 1,000 |  |  | $ 1,000 |

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