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Financial Instruments - Summary of Derivative Financial Instruments, Related Fair Value and Balance Sheet Classification (Details)
€ in Millions, £ in Millions, zł in Millions, gal / mo in Millions, $ in Millions, $ in Millions, $ in Millions
3 Months Ended 12 Months Ended
Apr. 29, 2023
EUR (€)
gal / mo
Apr. 30, 2022
EUR (€)
gal / mo
Jan. 28, 2023
EUR (€)
gal / mo
Apr. 29, 2023
GBP (£)
Apr. 29, 2023
USD ($)
Apr. 29, 2023
AUD ($)
Apr. 29, 2023
CAD ($)
Apr. 29, 2023
PLN (zł)
Jan. 28, 2023
GBP (£)
Jan. 28, 2023
USD ($)
Jan. 28, 2023
AUD ($)
Jan. 28, 2023
CAD ($)
Jan. 28, 2023
PLN (zł)
Apr. 30, 2022
GBP (£)
Apr. 30, 2022
USD ($)
Apr. 30, 2022
AUD ($)
Apr. 30, 2022
CAD ($)
Apr. 30, 2022
PLN (zł)
Derivatives, Fair Value [Line Items]                                    
Current Asset U.S.$         $ 15.0         $ 12.5         $ 142.4      
Current (Liability) U.S.$         (52.9)         (45.1)         (18.0)      
Net Fair Value in U.S.$         (37.9)         (32.6)         124.4      
Diesel fuel contracts | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Current Asset U.S.$         0.0                          
Current (Liability) U.S.$         (19.3)                          
Net Fair Value in U.S.$         $ (19.3)                          
Diesel fuel contracts | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Current Asset U.S.$                   3.9         53.7      
Current (Liability) U.S.$                   0.0         0.0      
Net Fair Value in U.S.$                   $ 3.9         $ 53.7      
Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate   0.8331                       0.8331 0.8331 0.8331 0.8331 0.8331
Current Asset U.S.$                             $ 0.0      
Current (Liability) U.S.$                             (2.3)      
Net Fair Value in U.S.$                             $ (2.3)      
Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate 0.8811   0.8834 0.8811 0.8811 0.8811 0.8811 0.8811 0.8834 0.8834 0.8834 0.8834 0.8834          
Current Asset U.S.$         $ 0.3         $ 0.8                
Current (Liability) U.S.$         0.0         0.0                
Net Fair Value in U.S.$         $ 0.3         $ 0.8                
Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate     0.6819           0.6819 0.6819 0.6819 0.6819 0.6819          
Current Asset U.S.$                   $ 0.0                
Current (Liability) U.S.$                   (3.3)                
Net Fair Value in U.S.$                   $ (3.3)                
Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate   0.7264                       0.7264 0.7264 0.7264 0.7264 0.7264
Current Asset U.S.$                             $ 1.4      
Current (Liability) U.S.$                             0.0      
Net Fair Value in U.S.$                             $ 1.4      
Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate 0.6829     0.6829 0.6829 0.6829 0.6829 0.6829                    
Current Asset U.S.$         $ 1.6                          
Current (Liability) U.S.$         (0.1)                          
Net Fair Value in U.S.$         $ 1.5                          
Conversion of Pound to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate 1.2147 1.3354 1.1916 1.2147 1.2147 1.2147 1.2147 1.2147 1.1916 1.1916 1.1916 1.1916 1.1916 1.3354 1.3354 1.3354 1.3354 1.3354
Current Asset U.S.$         $ 0.2         $ 0.1         $ 36.3      
Current (Liability) U.S.$         (13.3)         (15.4)         (0.2)      
Net Fair Value in U.S.$         $ (13.1)         $ (15.3)         $ 36.1      
Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate   0.7929                       0.7929 0.7929 0.7929 0.7929 0.7929
Current Asset U.S.$                             $ 14.2      
Current (Liability) U.S.$                             0.0      
Net Fair Value in U.S.$                             $ 14.2      
Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate 0.7434   0.7449 0.7434 0.7434 0.7434 0.7434 0.7434 0.7449 0.7449 0.7449 0.7449 0.7449          
Current Asset U.S.$         $ 4.9         $ 2.2                
Current (Liability) U.S.$         (1.5)         (7.1)                
Net Fair Value in U.S.$         $ 3.4         $ (4.9)                
Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate   0.7108                       0.7108 0.7108 0.7108 0.7108 0.7108
Current Asset U.S.$                             $ 0.0      
Current (Liability) U.S.$                             (0.8)      
Net Fair Value in U.S.$                             $ (0.8)      
Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate 0.6790   0.7064 0.6790 0.6790 0.6790 0.6790 0.6790 0.7064 0.7064 0.7064 0.7064 0.7064          
Current Asset U.S.$         $ 0.2         $ 0.4                
Current (Liability) U.S.$         (0.0)         (0.0)                
Net Fair Value in U.S.$         $ 0.2         $ 0.4                
Conversion of Zloty to Pound | Merchandise purchase commitments | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate 0.1833   0.1788 0.1833 0.1833 0.1833 0.1833 0.1833 0.1788 0.1788 0.1788 0.1788 0.1788          
Current Asset U.S.$         $ 0.0         $ 0.0                
Current (Liability) U.S.$         (4.1)         (3.6)                
Net Fair Value in U.S.$         $ (4.1)         $ (3.6)                
Conversion of Zloty to Pound | Merchandise purchase commitments | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate   0.1796                       0.1796 0.1796 0.1796 0.1796 0.1796
Current Asset U.S.$                             $ 2.5      
Current (Liability) U.S.$                             0.0      
Net Fair Value in U.S.$                             $ 2.5      
Conversion of US Dollar to Euro | Merchandise purchase commitments | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate   0.8910                       0.8910 0.8910 0.8910 0.8910 0.8910
Current Asset U.S.$                             $ 0.0      
Current (Liability) U.S.$                             (9.0)      
Net Fair Value in U.S.$                             (9.0)      
Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate     0.9634           0.9634 0.9634 0.9634 0.9634 0.9634          
Current Asset U.S.$                   $ 4.3                
Current (Liability) U.S.$                   0.0                
Net Fair Value in U.S.$                   4.3                
Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate 0.9271     0.9271 0.9271 0.9271 0.9271 0.9271                    
Current Asset U.S.$         $ 2.6                          
Current (Liability) U.S.$         (0.1)                          
Net Fair Value in U.S.$         2.5                          
Pay | Diesel fuel contracts | (Accrued Exp) | Minimum                                    
Derivatives, Fair Value [Line Items]                                    
Derivative nonmonetary notional amount | gal / mo 3.0                                  
Pay | Diesel fuel contracts | (Accrued Exp) | Maximum                                    
Derivatives, Fair Value [Line Items]                                    
Derivative nonmonetary notional amount | gal / mo 3.8                                  
Pay | Diesel fuel contracts | Prepaid Exp | Minimum                                    
Derivatives, Fair Value [Line Items]                                    
Derivative nonmonetary notional amount | gal / mo   3.2 3.2                              
Pay | Diesel fuel contracts | Prepaid Exp | Maximum                                    
Derivatives, Fair Value [Line Items]                                    
Derivative nonmonetary notional amount | gal / mo   4.0 3.6                              
Pay | Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | €   € 260                                
Pay | Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | € € 100   € 146                              
Pay | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount                     $ 104              
Pay | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount                               $ 70    
Pay | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount           $ 90                        
Pay | Conversion of Pound to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | £       £ 367         £ 299         £ 436        
Pay | Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount                                 $ 826  
Pay | Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount             $ 821         $ 705            
Pay | Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount                                 $ 31  
Pay | Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount             $ 27         $ 23            
Pay | Conversion of Zloty to Pound | Merchandise purchase commitments | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | zł               zł 532         zł 507          
Pay | Conversion of Zloty to Pound | Merchandise purchase commitments | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | zł                                   zł 615
Pay | Conversion of US Dollar to Euro | Merchandise purchase commitments | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount                             152.0      
Pay | Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount                   85.0                
Pay | Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount         120.0                          
Receive | Diesel fuel contracts | (Accrued Exp) | Minimum                                    
Derivatives, Fair Value [Line Items]                                    
Derivative nonmonetary notional amount | gal / mo 3.0                                  
Receive | Diesel fuel contracts | (Accrued Exp) | Maximum                                    
Derivatives, Fair Value [Line Items]                                    
Derivative nonmonetary notional amount | gal / mo 3.8                                  
Receive | Diesel fuel contracts | Prepaid Exp | Minimum                                    
Derivatives, Fair Value [Line Items]                                    
Derivative nonmonetary notional amount | gal / mo   3.2 3.2                              
Receive | Diesel fuel contracts | Prepaid Exp | Maximum                                    
Derivatives, Fair Value [Line Items]                                    
Derivative nonmonetary notional amount | gal / mo   4.0 3.6                              
Receive | Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | £                           217        
Receive | Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | £       88         129                  
Receive | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount                   71.0                
Receive | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount                             51.0      
Receive | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount         61.0                          
Receive | Conversion of Pound to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount         445.0         356.0         582.0      
Receive | Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount                             $ 655.0      
Receive | Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount         $ 610.0         $ 525.0                
Receive | Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | €   € 22                                
Receive | Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | € € 18   € 16                              
Receive | Conversion of Zloty to Pound | Merchandise purchase commitments | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | £       £ 98         £ 91                  
Receive | Conversion of Zloty to Pound | Merchandise purchase commitments | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | £                           £ 110        
Receive | Conversion of US Dollar to Euro | Merchandise purchase commitments | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | €   € 136                                
Receive | Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | €     € 82                              
Receive | Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | € € 112                                  
Fair value hedges | Conversion of Euro to Pound | Intercompany balances, primarily debt: | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate 0.8807 0.8428 0.8807 0.8807 0.8807 0.8807 0.8807 0.8807 0.8807 0.8807 0.8807 0.8807 0.8807 0.8428 0.8428 0.8428 0.8428 0.8428
Current Asset U.S.$         $ 0.0         $ 0.0         $ 0.0      
Current (Liability) U.S.$         (0.0)         (0.3)         (0.1)      
Net Fair Value in U.S.$         $ (0.0)         $ (0.3)         $ (0.1)      
Fair value hedges | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt: | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate     0.7003           0.7003 0.7003 0.7003 0.7003 0.7003          
Current Asset U.S.$                   $ 0.0                
Current (Liability) U.S.$                   (2.6)                
Net Fair Value in U.S.$                   $ (2.6)                
Fair value hedges | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt: | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate 0.7003 0.7180   0.7003 0.7003 0.7003 0.7003 0.7003           0.7180 0.7180 0.7180 0.7180 0.7180
Current Asset U.S.$         $ 4.9                   $ 1.9      
Current (Liability) U.S.$         0.0                   0.0      
Net Fair Value in U.S.$         $ 4.9                   $ 1.9      
Fair value hedges | Conversion of US Dollar to Pound | Intercompany balances, primarily debt: | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate   0.7368 0.8010           0.8010 0.8010 0.8010 0.8010 0.8010 0.7368 0.7368 0.7368 0.7368 0.7368
Current Asset U.S.$                   $ 0.0         $ 0.0      
Current (Liability) U.S.$                   (0.3)         (5.6)      
Net Fair Value in U.S.$                   $ (0.3)         $ (5.6)      
Fair value hedges | Conversion of US Dollar to Pound | Intercompany balances, primarily debt: | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate 0.8010     0.8010 0.8010 0.8010 0.8010 0.8010                    
Current Asset U.S.$         $ 0.2                          
Current (Liability) U.S.$         0.0                          
Net Fair Value in U.S.$         $ 0.2                          
Fair value hedges | Conversion of Pound to US Dollar | Intercompany balances, primarily debt: | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate 1.2191   1.2191 1.2191 1.2191 1.2191 1.2191 1.2191 1.2191 1.2191 1.2191 1.2191 1.2191          
Current Asset U.S.$         $ 0.0         $ 0.0                
Current (Liability) U.S.$         (6.5)         (5.5)                
Net Fair Value in U.S.$         $ (6.5)         $ (5.5)                
Fair value hedges | Conversion of Pound to US Dollar | Intercompany balances, primarily debt: | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate   1.3578                       1.3578 1.3578 1.3578 1.3578 1.3578
Current Asset U.S.$                             $ 15.5      
Current (Liability) U.S.$                             0.0      
Net Fair Value in U.S.$                             $ 15.5      
Fair value hedges | Conversion Of Euro To US Dollar | Intercompany balances, primarily debt: | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate   1.1462                       1.1462 1.1462 1.1462 1.1462 1.1462
Current Asset U.S.$                             $ 16.8      
Current (Liability) U.S.$                             0.0      
Net Fair Value in U.S.$                             $ 16.8      
Fair value hedges | Conversion Of Euro To US Dollar | Intercompany balances, primarily debt: | Prepaid Exp / (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate 1.0641   1.0652 1.0641 1.0641 1.0641 1.0641 1.0641 1.0652 1.0652 1.0652 1.0652 1.0652          
Current Asset U.S.$         $ 0.1         $ 0.8                
Current (Liability) U.S.$         (8.0)         (7.0)                
Net Fair Value in U.S.$         (7.9)         (6.2)                
Fair value hedges | Conversion of Zloty to Pound | Intercompany balances, primarily debt: | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Blended Contract Rate   0.1816                       0.1816 0.1816 0.1816 0.1816 0.1816
Current Asset U.S.$                             $ 0.1      
Current (Liability) U.S.$                             0.0      
Net Fair Value in U.S.$                             0.1      
Fair value hedges | Pay | Conversion of Euro to Pound | Intercompany balances, primarily debt: | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | € € 60 € 60 € 60                              
Fair value hedges | Pay | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt: | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount                     $ 150              
Fair value hedges | Pay | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt: | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount           $ 150                   $ 170    
Fair value hedges | Pay | Conversion of US Dollar to Pound | Intercompany balances, primarily debt: | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount                   69.0         75.0      
Fair value hedges | Pay | Conversion of US Dollar to Pound | Intercompany balances, primarily debt: | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount         69.0                          
Fair value hedges | Pay | Conversion of Pound to US Dollar | Intercompany balances, primarily debt: | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | £       £ 200         £ 200                  
Fair value hedges | Pay | Conversion of Pound to US Dollar | Intercompany balances, primarily debt: | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | £                           £ 150        
Fair value hedges | Pay | Conversion Of Euro To US Dollar | Intercompany balances, primarily debt: | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | €   € 200                                
Fair value hedges | Pay | Conversion Of Euro To US Dollar | Intercompany balances, primarily debt: | Prepaid Exp / (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | € € 200   € 200                              
Fair value hedges | Pay | Conversion of Zloty to Pound | Intercompany balances, primarily debt: | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | zł                                   zł 25
Fair value hedges | Receive | Conversion of Euro to Pound | Intercompany balances, primarily debt: | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | £       53         53         51        
Fair value hedges | Receive | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt: | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount                   105.0                
Fair value hedges | Receive | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt: | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount         105.0                   122.0      
Fair value hedges | Receive | Conversion of US Dollar to Pound | Intercompany balances, primarily debt: | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | £                 £ 55         55        
Fair value hedges | Receive | Conversion of US Dollar to Pound | Intercompany balances, primarily debt: | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | £       £ 55                            
Fair value hedges | Receive | Conversion of Pound to US Dollar | Intercompany balances, primarily debt: | (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount         244.0         244.0                
Fair value hedges | Receive | Conversion of Pound to US Dollar | Intercompany balances, primarily debt: | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount                             204.0      
Fair value hedges | Receive | Conversion Of Euro To US Dollar | Intercompany balances, primarily debt: | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount                             $ 229.0      
Fair value hedges | Receive | Conversion Of Euro To US Dollar | Intercompany balances, primarily debt: | Prepaid Exp / (Accrued Exp)                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount         $ 213.0         $ 213.0                
Fair value hedges | Receive | Conversion of Zloty to Pound | Intercompany balances, primarily debt: | Prepaid Exp                                    
Derivatives, Fair Value [Line Items]                                    
Derivative notional amount | £                           £ 5