v3.20.4
Debt, Credit Facilities, and Commitments and Contingencies - Summary of Long-Term Debt (Details)
$ in Millions
Dec. 31, 2020
USD ($)
May 31, 2020
EUR (€)
Dec. 31, 2019
USD ($)
Nov. 30, 2019
Sep. 30, 2019
EUR (€)
Sep. 30, 2018
Nov. 30, 2016
EUR (€)
May 31, 2016
May 31, 2015
Nov. 30, 2012
Long-term debt                    
Fair value hedges $ 278   $ (48)              
Unamortized bond discounts (146)   (161)              
Unamortized deferred financing costs (287)   (323)              
Unamortized bond premiums [1] 1,200   0              
Total long-term debt and finance lease obligations 86,022   66,728              
Current portion 8,468   3,753              
Noncurrent portion 77,554   62,975              
Stated interest rate (as a percent)   1.25%                
Aggregate principal amount of debt | €   € 700,000,000                
Other                    
Long-term debt                    
Long-term debt and lease obligations, gross $ 29   $ 27              
Senior notes | 2.90% notes due 2022                    
Long-term debt                    
Weighted-average effective interest rate [2] 2.97%   2.97%              
Long-term debt and lease obligations, gross $ 3,100   $ 3,100              
Stated interest rate (as a percent)                   2.90%
Senior notes | 4.40% notes due 2042                    
Long-term debt                    
Weighted-average effective interest rate [2] 4.46%   4.46%              
Long-term debt and lease obligations, gross $ 2,600   $ 2,600              
Stated interest rate (as a percent)                   4.40%
Senior notes | 2.50% notes due 2020                    
Long-term debt                    
Weighted-average effective interest rate [2] 2.65%   2.65%              
Long-term debt and lease obligations, gross     $ 3,750              
Stated interest rate (as a percent)   2.50%             2.50%  
Senior notes | 3.20% notes due 2022                    
Long-term debt                    
Weighted-average effective interest rate [2] 3.28%   3.28%              
Long-term debt and lease obligations, gross $ 1,000   $ 1,000              
Stated interest rate (as a percent)                 3.20%  
Senior notes | 3.60% notes due 2025                    
Long-term debt                    
Weighted-average effective interest rate [2] 3.66%   3.66%              
Long-term debt and lease obligations, gross $ 3,750   $ 3,750              
Stated interest rate (as a percent)                 3.60%  
Senior notes | 4.50% notes due 2035                    
Long-term debt                    
Weighted-average effective interest rate [2] 4.58%   4.58%              
Long-term debt and lease obligations, gross $ 2,500   $ 2,500              
Stated interest rate (as a percent)                 4.50%  
Senior notes | 4.70% notes due 2045                    
Long-term debt                    
Weighted-average effective interest rate [2] 4.73%   4.73%              
Long-term debt and lease obligations, gross $ 2,700   $ 2,700              
Stated interest rate (as a percent)                 4.70%  
Senior notes | 2.30% notes due 2021                    
Long-term debt                    
Weighted-average effective interest rate [2] 2.40%   2.40%              
Long-term debt and lease obligations, gross $ 1,800   $ 1,800              
Stated interest rate (as a percent)               2.30%    
Senior notes | 2.85% notes due 2023                    
Long-term debt                    
Weighted-average effective interest rate [2] 2.91%   2.91%              
Long-term debt and lease obligations, gross $ 1,000   $ 1,000              
Stated interest rate (as a percent)               2.85%    
Senior notes | 3.20% notes due 2026                    
Long-term debt                    
Weighted-average effective interest rate [2] 3.28%   3.28%              
Long-term debt and lease obligations, gross $ 2,000   $ 2,000              
Stated interest rate (as a percent)               3.20%    
Senior notes | 4.30% notes due 2036                    
Long-term debt                    
Weighted-average effective interest rate [2] 4.37%   4.37%              
Long-term debt and lease obligations, gross $ 1,000   $ 1,000              
Stated interest rate (as a percent)               4.30%    
Senior notes | 4.45% notes due 2046                    
Long-term debt                    
Weighted-average effective interest rate [2] 4.50%   4.50%              
Long-term debt and lease obligations, gross $ 2,000   $ 2,000              
Stated interest rate (as a percent)               4.45%    
Senior notes | 1.375% notes due 2024 (€1,450 principal)                    
Long-term debt                    
Weighted-average effective interest rate [2] 1.46%   1.46%              
Long-term debt and lease obligations, gross $ 1,783   $ 1,625              
Stated interest rate (as a percent)             1.375%      
Aggregate principal amount of debt | €             € 1,450,000,000      
Senior notes | 2.125% notes due 2028 (€750 principal)                    
Long-term debt                    
Weighted-average effective interest rate [2] 2.18%   2.18%              
Long-term debt and lease obligations, gross $ 922   $ 840              
Stated interest rate (as a percent)             2.125%      
Aggregate principal amount of debt | €             € 750,000,000      
Senior notes | 3.375% notes due 2021                    
Long-term debt                    
Weighted-average effective interest rate [2] 3.51%   3.51%              
Long-term debt and lease obligations, gross $ 1,250   $ 1,250              
Stated interest rate (as a percent)           3.375%        
Senior notes | 3.75% notes due 2023                    
Long-term debt                    
Weighted-average effective interest rate [2] 3.84%   3.84%              
Long-term debt and lease obligations, gross $ 1,250   $ 1,250              
Stated interest rate (as a percent)           3.75%        
Senior notes | 4.25% notes due 2028                    
Long-term debt                    
Weighted-average effective interest rate [2] 4.38%   4.38%              
Long-term debt and lease obligations, gross $ 1,750   $ 1,750              
Stated interest rate (as a percent)           4.25%        
Senior notes | 4.875% notes due 2048                    
Long-term debt                    
Weighted-average effective interest rate [2] 4.94%   4.94%              
Long-term debt and lease obligations, gross $ 1,750   $ 1,750              
Stated interest rate (as a percent)           4.875%        
Senior notes | 0.75% notes due 2027 (€750 principal)                    
Long-term debt                    
Weighted-average effective interest rate [2] 0.86%   0.86%              
Long-term debt and lease obligations, gross $ 922   $ 840              
Stated interest rate (as a percent)         0.75%          
Aggregate principal amount of debt | €         € 750,000,000          
Senior notes | 1.25% notes due 2031 (€650 principal)                    
Long-term debt                    
Weighted-average effective interest rate [2] 1.30%   1.30%              
Long-term debt and lease obligations, gross $ 799   $ 728              
Stated interest rate (as a percent)         1.25%          
Aggregate principal amount of debt | €         € 650,000,000          
Senior notes | Floating rate notes due May 2021                    
Long-term debt                    
Weighted-average effective interest rate [2] 1.33%   2.08%              
Long-term debt and lease obligations, gross $ 750   $ 750              
Senior notes | Floating rate notes due November 2021                    
Long-term debt                    
Weighted-average effective interest rate [2] 1.42%   2.12%              
Long-term debt and lease obligations, gross $ 750   $ 750              
Senior notes | Floating rate notes due 2022                    
Long-term debt                    
Weighted-average effective interest rate [2] 1.62%   2.29%              
Long-term debt and lease obligations, gross $ 750   $ 750              
Senior notes | 2.15% notes due 2021                    
Long-term debt                    
Weighted-average effective interest rate [2] 2.23%   2.23%              
Long-term debt and lease obligations, gross $ 1,750   $ 1,750              
Stated interest rate (as a percent)       2.15%            
Senior notes | 2.30% notes due 2022                    
Long-term debt                    
Weighted-average effective interest rate [2] 2.42%   2.42%              
Long-term debt and lease obligations, gross $ 3,000   $ 3,000              
Stated interest rate (as a percent)       2.30%            
Senior notes | 2.60% notes due 2024                    
Long-term debt                    
Weighted-average effective interest rate [2] 2.69%   2.69%              
Long-term debt and lease obligations, gross $ 3,750   $ 3,750              
Stated interest rate (as a percent)       2.60%            
Senior notes | 2.95% notes due 2026                    
Long-term debt                    
Weighted-average effective interest rate [2] 3.02%   3.02%              
Long-term debt and lease obligations, gross $ 4,000   $ 4,000              
Stated interest rate (as a percent)       2.95%            
Senior notes | 3.20% notes due 2029                    
Long-term debt                    
Weighted-average effective interest rate [2] 3.25%   3.25%              
Long-term debt and lease obligations, gross $ 5,500   $ 5,500              
Stated interest rate (as a percent)       3.20%            
Senior notes | 4.05% notes due 2039                    
Long-term debt                    
Weighted-average effective interest rate [2] 4.11%   4.11%              
Long-term debt and lease obligations, gross $ 4,000   $ 4,000              
Stated interest rate (as a percent)       4.05%            
Senior notes | 4.25% notes due 2049                    
Long-term debt                    
Weighted-average effective interest rate [2] 4.29%   4.29%              
Long-term debt and lease obligations, gross $ 5,750   $ 5,750              
Stated interest rate (as a percent)       4.25%            
Senior notes | 5.000% notes due 2021                    
Long-term debt                    
Weighted-average effective interest rate [2] 1.59%   0.00%              
Long-term debt and lease obligations, gross $ 1,200   $ 0              
Stated interest rate (as a percent)   5.00%                
Senior notes | 3.450% notes due 2022                    
Long-term debt                    
Weighted-average effective interest rate [2] 1.89%   0.00%              
Long-term debt and lease obligations, gross $ 2,878   $ 0              
Stated interest rate (as a percent)   3.45%                
Senior notes | 3.250% notes due 2022                    
Long-term debt                    
Weighted-average effective interest rate [2] 1.85%   0.00%              
Long-term debt and lease obligations, gross $ 1,700   $ 0              
Stated interest rate (as a percent)   3.25%                
Senior notes | 2.800% notes due 2023                    
Long-term debt                    
Weighted-average effective interest rate [2] 2.08%   0.00%              
Long-term debt and lease obligations, gross $ 350   $ 0              
Stated interest rate (as a percent)   2.80%                
Senior notes | 3.850% notes due 2024                    
Long-term debt                    
Weighted-average effective interest rate [2] 1.98%   0.00%              
Long-term debt and lease obligations, gross $ 1,032   $ 0              
Stated interest rate (as a percent)   3.85%                
Senior notes | 3.800% notes due 2025                    
Long-term debt                    
Weighted-average effective interest rate [2] 2.00%   0.00%              
Long-term debt and lease obligations, gross $ 3,021   $ 0              
Stated interest rate (as a percent)   3.80%                
Senior notes | 4.550% notes due 2035                    
Long-term debt                    
Weighted-average effective interest rate [2] 3.43%   0.00%              
Long-term debt and lease obligations, gross $ 1,789   $ 0              
Stated interest rate (as a percent)   4.55%                
Senior notes | 4.625% notes due 2042                    
Long-term debt                    
Weighted-average effective interest rate [2] 3.93%   0.00%              
Long-term debt and lease obligations, gross $ 457   $ 0              
Stated interest rate (as a percent)   4.625%                
Senior notes | 4.850% notes due 2044                    
Long-term debt                    
Weighted-average effective interest rate [2] 4.02%   0.00%              
Long-term debt and lease obligations, gross $ 1,074   $ 0              
Stated interest rate (as a percent)   4.85%                
Senior notes | 4.750% notes due 2045                    
Long-term debt                    
Weighted-average effective interest rate [2] 4.13%   0.00%              
Long-term debt and lease obligations, gross $ 881   $ 0              
Stated interest rate (as a percent)   4.75%                
Senior notes | 0.500% notes due 2021 (€750 principal)                    
Long-term debt                    
Weighted-average effective interest rate [2] 0.68%   0.00%              
Long-term debt and lease obligations, gross $ 922   $ 0              
Stated interest rate (as a percent)   0.50%                
Aggregate principal amount of debt | €   € 750,000,000                
Senior notes | 1.500% notes due 2023 (€500 principal)                    
Long-term debt                    
Weighted-average effective interest rate [2] 0.48%   0.00%              
Long-term debt and lease obligations, gross $ 615   $ 0              
Stated interest rate (as a percent)   1.50%                
Aggregate principal amount of debt | €   € 500,000,000                
Senior notes | 1.250% notes due 2024 (€700 principal)                    
Long-term debt                    
Weighted-average effective interest rate [2] 0.64%   0.00%              
Long-term debt and lease obligations, gross $ 861   $ 0              
Senior notes | 2.625% notes due 2028 (€500 principal)                    
Long-term debt                    
Weighted-average effective interest rate [2] 1.18%   0.00%              
Long-term debt and lease obligations, gross $ 615   $ 0              
Stated interest rate (as a percent)   2.625%                
Aggregate principal amount of debt | €   € 500,000,000                
Senior notes | 2.125% notes due 2029 (€550 principal)                    
Long-term debt                    
Weighted-average effective interest rate [2] 1.18%   0.00%              
Long-term debt and lease obligations, gross $ 677   $ 0              
Stated interest rate (as a percent)   2.125%                
Aggregate principal amount of debt | €   € 550,000,000                
Term loan facilities | Floating rate notes due 2023                    
Long-term debt                    
Weighted-average effective interest rate [2] 1.29%   0.00%              
Long-term debt and lease obligations, gross $ 1,000   $ 0              
Total long-term debt and finance lease obligations $ 1,000                  
Term loan facilities | Floating rate notes due 2025                    
Long-term debt                    
Weighted-average effective interest rate [2] 1.42%   0.00%              
Long-term debt and lease obligations, gross $ 2,000   $ 0              
Total long-term debt and finance lease obligations $ 2,000                  
[1] Represents unamortized purchase price adjustments of Allergan debt.
[2] Excludes the effect of any related interest rate swaps.