Annual report pursuant to Section 13 and 15(d)

Retirement Benefit Plans (Detail)

v3.21.4
Retirement Benefit Plans (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 25, 2021
Dec. 26, 2020
Dec. 28, 2019
Defined Benefit Plan Disclosure [Line Items]      
Beginning projected benefit obligation $ 4,456 $ 4,929 $ 4,284
Service cost 54 49  
Interest cost 91 97  
Actuarial (gain) loss (284) 373  
Currency exchange rate changes (150) 261  
Plan settlements (126) (79)  
Other changes in projected benefit obligation (58) (56)  
Fair value of plan assets 2,817 2,878 $ 2,654
Actual return on plan assets 145 203  
Currency exchange rate changes (63) 113  
Defined Benefit Plan, Plan Assets, Payment for Settlement (126) (79)  
Other (17) (13)  
Net unfunded status 1,639 2,051  
Accumulated other comprehensive loss (income), before tax3 $ 1,445 1,911  
Defined Benefit Plan, Additional Information [Abstract]      
Net Actuarial (Gain) Loss Amortization Percent 10.00%    
Accumulated benefit obligations $ 4,086 $ 4,429  
Defined Benefit Plan, Funded Status Percentage [Abstract]      
Defined Benefit Plan, Funded Percentage 68.00%    
Defined Benefit Plan, Component Of Worldwide Pension And Postretirement Benefit Obligation (percent) 28.00%    
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]      
Discount rate 2.20% 1.90%  
Rate of compensation increase 3.20% 3.20%  
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]      
Discount rate 1.90% 2.30% 3.40%
Expected long-term rate of return on plan assets 2.70% 3.30% 4.70%
Rate of compensation increase 3.20% 3.20% 3.50%
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]      
Estimated Benefit Payments, 2019 $ 147    
Estimated Benefit Payments, 2020 144    
Estimated Benefit Payments, 2021 141    
Estimated Benefit Payments, 2022 142    
Estimated Benefit Payments, 2023 146    
Estimated Benefit Payments, 2024-2028 765    
Other long-term liabilities [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Net unfunded status 1,639 $ 2,051  
Pension Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 484 $ 455  
UNITED STATES      
Defined Benefit Plan Disclosure [Line Items]      
Projected Benefit Obligations Percentage Split 30.00% 35.00%  
Fair Value of Plan Assets Percentage Split 50.00% 55.00%  
AOCI Percentage Split 30.00% 35.00%  
Defined Contribution Plan, Employer Discretionary Contribution Amount $ 444 $ 398 $ 379
Defined Benefit Plan, Funded Status Percentage [Abstract]      
Defined Benefit Plan, Funded Percentage 99.00%    
UNITED STATES | Pension Plan [Member]      
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]      
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) $ 162 164 $ 135
UNITED STATES | Postretirement Health Coverage [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Beginning projected benefit obligation 682 741  
Fair value of plan assets $ 669 $ 600  
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]      
Discount rate 2.80% 2.40%  
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]      
Estimated Benefit Payments, 2019 $ 37    
Estimated Benefit Payments, 2020 38    
Estimated Benefit Payments, 2021 39    
Estimated Benefit Payments, 2022 41    
Estimated Benefit Payments, 2023 42    
Estimated Benefit Payments, 2024-2028 $ 219    
Foreign Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Projected Benefit Obligations Percentage Split 70.00% 65.00%  
Fair Value of Plan Assets Percentage Split 50.00% 45.00%  
AOCI Percentage Split 70.00% 65.00%  
Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Target Plan Asset Allocations (percent) 35.00%    
Fair value of plan assets $ 342 $ 320  
Equity securities | UNITED STATES      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Target Plan Asset Allocations (percent) 10.00%    
Equity securities | UNITED STATES | Postretirement Health Coverage [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Target Plan Asset Allocations (percent) 65.00%    
Fixed income      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Target Plan Asset Allocations (percent) 45.00%    
Fair value of plan assets $ 142 135  
Fixed income | UNITED STATES      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Target Plan Asset Allocations (percent) 90.00%    
Fixed income | UNITED STATES | Postretirement Health Coverage [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Target Plan Asset Allocations (percent) 35.00%    
Assets measured at net asset value [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 2,311 2,401  
Cash [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 22 $ 22  
Hedge Funds [Member] | Foreign Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Target Plan Asset Allocations (percent) 20.00%    
Level 1 [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 0    
Level 1 [Member] | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0    
Level 1 [Member] | Fixed income      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0    
Level 2 [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 464    
Level 2 [Member] | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 342    
Level 2 [Member] | Fixed income      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 122    
Level 3 [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 20    
Level 3 [Member] | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0    
Level 3 [Member] | Fixed income      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 20