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v3.20.4

Short-Term Borrowings and Long-Term Debt (Tables) | 12 Months Ended
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Dec. 31, 2020
Debt Instrument [Line Items] |
Short-Term Borrowings and Long-Term Debt [Table Text Block] | Short-term borrowings and senior unsecured long-term debt consisted of the following:
|  | December 31, 2020 |  | December 31, 2019
(in millions, except percentages) |  | Par Value |  | Carrying Value |  | Fair Value |  | Par Value |  | Carrying Value |  | Fair Value
Commercial paper |  | $ | 1,296 |  |  | $ | 1,296 |  |  | $ | 1,296 |  |  | $ | 400 |  |  | $ | 400 |  |  | $ | 400 |
2.700% notes due July 2020 |  | — |  |  | — |  |  | — |  |  | 1,500 |  |  | 1,499 |  |  | 1,506 |
Floating rate notes due October 2020 |  | — |  |  | — |  |  | — |  |  | 300 |  |  | 300 |  |  | 300 |
3.875% notes due October 2020 |  | — |  |  | — |  |  | — |  |  | 450 |  |  | 450 |  |  | 455 |
1.950% notes due October 2020 |  | — |  |  | — |  |  | — |  |  | 900 |  |  | 899 |  |  | 900 |
4.700% notes due February 2021 |  | 400 |  |  | 400 |  |  | 401 |  |  | 400 |  |  | 403 |  |  | 410 |
2.125% notes due March 2021 |  | 750 |  |  | 750 |  |  | 753 |  |  | 750 |  |  | 749 |  |  | 753 |
Floating rate notes due June 2021 |  | 350 |  |  | 350 |  |  | 350 |  |  | 350 |  |  | 349 |  |  | 350 |
3.150% notes due June 2021 |  | 400 |  |  | 400 |  |  | 405 |  |  | 400 |  |  | 399 |  |  | 407 |
3.375% notes due November 2021 |  | 500 |  |  | 507 |  |  | 509 |  |  | 500 |  |  | 501 |  |  | 512 |
2.875% notes due December 2021 |  | 750 |  |  | 762 |  |  | 768 |  |  | 750 |  |  | 753 |  |  | 765 |
2.875% notes due March 2022 |  | 1,100 |  |  | 1,113 |  |  | 1,127 |  |  | 1,100 |  |  | 1,087 |  |  | 1,121 |
3.350% notes due July 2022 |  | 1,000 |  |  | 999 |  |  | 1,048 |  |  | 1,000 |  |  | 998 |  |  | 1,036 |
2.375% notes due October 2022 |  | 900 |  |  | 897 |  |  | 935 |  |  | 900 |  |  | 896 |  |  | 911 |
0.000% notes due November 2022 |  | 15 |  |  | 14 |  |  | 14 |  |  | 15 |  |  | 13 |  |  | 14 |
2.750% notes due February 2023 |  | 625 |  |  | 644 |  |  | 654 |  |  | 625 |  |  | 624 |  |  | 638 |
2.875% notes due March 2023 |  | 750 |  |  | 789 |  |  | 793 |  |  | 750 |  |  | 770 |  |  | 770 |
3.500% notes due June 2023 |  | 750 |  |  | 748 |  |  | 809 |  |  | 750 |  |  | 747 |  |  | 786 |
3.500% notes due February 2024 |  | 750 |  |  | 747 |  |  | 821 |  |  | 750 |  |  | 746 |  |  | 792 |
2.375% notes due August 2024 |  | 750 |  |  | 747 |  |  | 799 |  |  | 750 |  |  | 747 |  |  | 760 |
3.750% notes due July 2025 |  | 2,000 |  |  | 1,992 |  |  | 2,279 |  |  | 2,000 |  |  | 1,990 |  |  | 2,161 |
3.700% notes due December 2025 |  | 300 |  |  | 298 |  |  | 344 |  |  | 300 |  |  | 298 |  |  | 325 |
1.250% notes due January 2026 |  | 500 |  |  | 496 |  |  | 515 |  |  | — |  |  | — |  |  | — |
3.100% notes due March 2026 |  | 1,000 |  |  | 997 |  |  | 1,121 |  |  | 1,000 |  |  | 996 |  |  | 1,048 |
3.450% notes due January 2027 |  | 750 |  |  | 747 |  |  | 859 |  |  | 750 |  |  | 746 |  |  | 804 |
3.375% notes due April 2027 |  | 625 |  |  | 620 |  |  | 714 |  |  | 625 |  |  | 620 |  |  | 667 |
2.950% notes due October 2027 |  | 950 |  |  | 940 |  |  | 1,067 |  |  | 950 |  |  | 939 |  |  | 988 |
3.850% notes due June 2028 |  | 1,150 |  |  | 1,143 |  |  | 1,367 |  |  | 1,150 |  |  | 1,142 |  |  | 1,269 |
3.875% notes due December 2028 |  | 850 |  |  | 844 |  |  | 1,019 |  |  | 850 |  |  | 843 |  |  | 941 |
2.875% notes due August 2029 |  | 1,000 |  |  | 1,086 |  |  | 1,137 |  |  | 1,000 |  |  | 993 |  |  | 1,029 |
2.000% notes due May 2030 |  | 1,250 |  |  | 1,234 |  |  | 1,326 |  |  | — |  |  | — |  |  | — |
4.625% notes due July 2035 |  | 1,000 |  |  | 992 |  |  | 1,340 |  |  | 1,000 |  |  | 992 |  |  | 1,215 |
5.800% notes due March 2036 |  | 850 |  |  | 839 |  |  | 1,271 |  |  | 850 |  |  | 838 |  |  | 1,129 |
6.500% notes due June 2037 |  | 500 |  |  | 492 |  |  | 800 |  |  | 500 |  |  | 492 |  |  | 712 |
6.625% notes due November 2037 |  | 650 |  |  | 641 |  |  | 1,044 |  |  | 650 |  |  | 641 |  |  | 940 |
6.875% notes due February 2038 |  | 1,100 |  |  | 1,077 |  |  | 1,802 |  |  | 1,100 |  |  | 1,076 |  |  | 1,631 |
3.500% notes due August 2039 |  | 1,250 |  |  | 1,241 |  |  | 1,487 |  |  | 1,250 |  |  | 1,241 |  |  | 1,313 |
2.750% notes due May 2040 |  | 1,000 |  |  | 964 |  |  | 1,085 |  |  | — |  |  | — |  |  | — |
5.700% notes due October 2040 |  | 300 |  |  | 296 |  |  | 451 |  |  | 300 |  |  | 296 |  |  | 396 |
5.950% notes due February 2041 |  | 350 |  |  | 346 |  |  | 540 |  |  | 350 |  |  | 345 |  |  | 475 |
4.625% notes due November 2041 |  | 600 |  |  | 589 |  |  | 820 |  |  | 600 |  |  | 589 |  |  | 716 |
4.375% notes due March 2042 |  | 502 |  |  | 485 |  |  | 661 |  |  | 502 |  |  | 484 |  |  | 580 |
3.950% notes due October 2042 |  | 625 |  |  | 608 |  |  | 790 |  |  | 625 |  |  | 607 |  |  | 688 |
4.250% notes due March 2043 |  | 750 |  |  | 735 |  |  | 982 |  |  | 750 |  |  | 735 |  |  | 856 |
4.750% notes due July 2045 |  | 2,000 |  |  | 1,974 |  |  | 2,814 |  |  | 2,000 |  |  | 1,973 |  |  | 2,463 |
4.200% notes due January 2047 |  | 750 |  |  | 738 |  |  | 991 |  |  | 750 |  |  | 738 |  |  | 861 |
4.250% notes due April 2047 |  | 725 |  |  | 717 |  |  | 963 |  |  | 725 |  |  | 717 |  |  | 839 |
3.750% notes due October 2047 |  | 950 |  |  | 934 |  |  | 1,180 |  |  | 950 |  |  | 934 |  |  | 1,023 |
4.250% notes due June 2048 |  | 1,350 |  |  | 1,330 |  |  | 1,803 |  |  | 1,350 |  |  | 1,330 |  |  | 1,569 |
4.450% notes due December 2048 |  | 1,100 |  |  | 1,086 |  |  | 1,517 |  |  | 1,100 |  |  | 1,086 |  |  | 1,316 |
3.700% notes due August 2049 |  | 1,250 |  |  | 1,235 |  |  | 1,567 |  |  | 1,250 |  |  | 1,235 |  |  | 1,344 |
2.900% notes due May 2050 |  | 1,250 |  |  | 1,208 |  |  | 1,384 |  |  | — |  |  | — |  |  | — |
3.875% notes due August 2059 |  | 1,250 |  |  | 1,228 |  |  | 1,618 |  |  | 1,250 |  |  | 1,228 |  |  | 1,350 |
3.125% notes due May 2060 |  | 1,000 |  |  | 965 |  |  | 1,161 |  |  | — |  |  | — |  |  | — |
Total short-term borrowings and long-term debt |  | $ | 42,563 |  |  | $ | 42,280 |  |  | $ | 51,301 |  |  | $ | 39,817 |  |  | $ | 39,474 |  |  | $ | 44,234 |
Schedule of Maturities of Long-term Debt [Table Text Block] | Maturities of short-term borrowings and long-term debt for the years ending December 31 are as follows:
(in millions) |  |
2021 |  | $ | 4,800 |
2022 |  | 3,180 |
2023 |  | 2,290 |
2024 |  | 1,665 |
2025 |  | 2,465 |
Thereafter |  | 29,349 |

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