Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans - Pension and Postretirement Plans (Details)

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Employee Benefit Plans - Pension and Postretirement Plans (Details) - USD ($)
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Change in fair value of plan assets      
Fair value, January 1 $ 26,139,000,000    
Fair value, December 31 26,096,000,000 $ 26,139,000,000  
U.S. | Other Pension Plan      
Change in fair value of plan assets      
Company contributions 0 0  
U.S. | Postretirement Health and Life Plans      
Change in fair value of plan assets      
Fair value, January 1 143,000,000 199,000,000  
Actual return on plan assets 0 1,000,000  
Company contributions 38,000,000 6,000,000  
Plan participant contributions 107,000,000 110,000,000  
Settlements and curtailments 0 0  
Benefits paid (171,000,000) (174,000,000)  
Federal subsidy on benefits paid 0 1,000,000  
Fair value, December 31 117,000,000 143,000,000 $ 199,000,000
Change in projected benefit obligation      
Projected benefit obligation, January 1 1,007,000,000 989,000,000  
Service cost 5,000,000 5,000,000 5,000,000
Interest cost 24,000,000 32,000,000 38,000,000
Plan participant contributions 107,000,000 110,000,000  
Plan amendments 0 0  
Settlements and curtailments 0 0  
Actuarial loss (gain) (44,000,000) 43,000,000  
Benefits paid (171,000,000) (173,000,000)  
Federal subsidy on benefits paid 0 1,000,000  
Foreign currency exchange rate changes 0 0  
Projected benefit obligation, December 31 928,000,000 1,007,000,000 989,000,000
Amounts recognized on Consolidated Balance Sheet      
Other assets 0 0  
Accrued expenses and other liabilities (811,000,000) (864,000,000)  
Net amount recognized, December 31 (811,000,000) (864,000,000)  
Funded status, December 31      
Projected benefit obligation $ 928,000,000 $ 1,007,000,000 989,000,000
Weighted-average assumptions, December 31      
Discount rate 2.85% 2.48%  
U.S. | Qualified | Pension Plan      
Change in fair value of plan assets      
Fair value, January 1 $ 21,776,000,000 $ 20,275,000,000  
Actual return on plan assets 1,215,000,000 2,468,000,000  
Company contributions 0 0  
Plan participant contributions 0 0  
Settlements and curtailments 0 0  
Benefits paid (913,000,000) (967,000,000)  
Fair value, December 31 22,078,000,000 21,776,000,000 20,275,000,000
Change in projected benefit obligation      
Projected benefit obligation, January 1 16,427,000,000 15,361,000,000  
Service cost 0 0 0
Interest cost 414,000,000 500,000,000 593,000,000
Plan participant contributions 0 0  
Plan amendments 0 0  
Settlements and curtailments 0 0  
Actuarial loss (gain) (252,000,000) 1,533,000,000  
Benefits paid (913,000,000) (967,000,000)  
Projected benefit obligation, December 31 15,676,000,000 16,427,000,000 15,361,000,000
Amounts recognized on Consolidated Balance Sheet      
Other assets 6,402,000,000 5,349,000,000  
Accrued expenses and other liabilities 0 0  
Net amount recognized, December 31 6,402,000,000 5,349,000,000  
Funded status, December 31      
Accumulated benefit obligation 15,676,000,000 16,427,000,000  
Overfunded (unfunded) status of ABO 6,402,000,000 5,349,000,000  
Provision for future salaries 0 0  
Projected benefit obligation $ 15,676,000,000 $ 16,427,000,000 15,361,000,000
Weighted-average assumptions, December 31      
Discount rate 2.86% 2.57%  
Interest-crediting rate 4.83% 5.02%  
U.S. | Nonqualified | Other Pension Plan      
Change in fair value of plan assets      
Fair value, January 1 $ 2,789,000,000 $ 2,666,000,000  
Actual return on plan assets (55,000,000) 285,000,000  
Company contributions 87,000,000 86,000,000  
Plan participant contributions 0 0  
Settlements and curtailments 0 0  
Benefits paid (236,000,000) (248,000,000)  
Fair value, December 31 2,585,000,000 2,789,000,000 2,666,000,000
Change in projected benefit obligation      
Projected benefit obligation, January 1 3,005,000,000 2,919,000,000  
Service cost 0 1,000,000 1,000,000
Interest cost 67,000,000 90,000,000 113,000,000
Plan participant contributions 0 0  
Plan amendments 0 0  
Settlements and curtailments 0 0  
Actuarial loss (gain) (83,000,000) 243,000,000  
Benefits paid (236,000,000) (248,000,000)  
Projected benefit obligation, December 31 2,753,000,000 3,005,000,000 2,919,000,000
Amounts recognized on Consolidated Balance Sheet      
Other assets 777,000,000 812,000,000  
Accrued expenses and other liabilities (945,000,000) (1,028,000,000)  
Net amount recognized, December 31 (168,000,000) (216,000,000)  
Funded status, December 31      
Accumulated benefit obligation 2,753,000,000 3,005,000,000  
Overfunded (unfunded) status of ABO (168,000,000) (216,000,000)  
Provision for future salaries 0 0  
Projected benefit obligation $ 2,753,000,000 $ 3,005,000,000 2,919,000,000
Weighted-average assumptions, December 31      
Discount rate 2.80% 2.33%  
Rate of compensation increase 4.00% 4.00%  
Interest-crediting rate 4.22% 4.49%  
Non-U.S. | Pension Plan      
Change in fair value of plan assets      
Fair value, January 1 $ 3,078,000,000 $ 2,696,000,000  
Actual return on plan assets 62,000,000 379,000,000  
Company contributions 24,000,000 23,000,000  
Plan participant contributions 1,000,000 1,000,000  
Settlements and curtailments (11,000,000) (61,000,000)  
Benefits paid (84,000,000) (57,000,000)  
Foreign currency exchange rate changes (39,000,000) 97,000,000  
Fair value, December 31 3,031,000,000 3,078,000,000 2,696,000,000
Change in projected benefit obligation      
Projected benefit obligation, January 1 3,340,000,000 2,887,000,000  
Service cost 28,000,000 20,000,000 17,000,000
Interest cost 45,000,000 49,000,000 65,000,000
Plan participant contributions 1,000,000 1,000,000  
Plan amendments 0 3,000,000  
Settlements and curtailments (11,000,000) (61,000,000)  
Actuarial loss (gain) (152,000,000) 396,000,000  
Benefits paid (84,000,000) (57,000,000)  
Foreign currency exchange rate changes (51,000,000) 102,000,000  
Projected benefit obligation, December 31 3,116,000,000 3,340,000,000 2,887,000,000
Amounts recognized on Consolidated Balance Sheet      
Other assets 550,000,000 428,000,000  
Accrued expenses and other liabilities (635,000,000) (690,000,000)  
Net amount recognized, December 31 (85,000,000) (262,000,000)  
Funded status, December 31      
Accumulated benefit obligation 3,031,000,000 3,253,000,000  
Overfunded (unfunded) status of ABO 0 (175,000,000)  
Provision for future salaries 85,000,000 87,000,000  
Projected benefit obligation $ 3,116,000,000 $ 3,340,000,000 $ 2,887,000,000
Weighted-average assumptions, December 31      
Discount rate 1.85% 1.37%  
Rate of compensation increase 4.46% 4.11%  
Interest-crediting rate 1.90% 1.58%