v3.6.0.2
Amounts Recognized on Balance Sheets Related to Qualified Defined Benefit Pension Plans and Retiree Medical and Life Insurance Plans (Detail) - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]    
Accrued postretirement benefit liabilities $ (13,855) $ (11,807)
Qualified defined benefit pension plans    
Defined Benefit Plan Disclosure [Line Items]    
Prepaid pension asset 208 201
Accrued postretirement benefit liabilities (13,855) (11,807)
Accumulated other comprehensive loss (pre-tax) related to net actuarial losses 20,184 19,632
Accumulated other comprehensive loss (pre-tax) related to prior service (credit) cost [1] (2,896) (3,565)
Total [2] 17,288 16,067
Retiree medical and life insurance plans    
Defined Benefit Plan Disclosure [Line Items]    
Accrued postretirement benefit liabilities (862) (1,070)
Accumulated other comprehensive loss (pre-tax) related to net actuarial losses 447 627
Accumulated other comprehensive loss (pre-tax) related to prior service (credit) cost [1] 96 167
Total [2] $ 543 $ 794
[1] Pre-tax amounts of $210 million for qualified pension prior service credits and $9 million for retiree medical prior service costs were recognized from the divestiture of our IS&GS business (combined $134 million, net of tax).
[2] Accumulated other comprehensive loss related to postretirement benefit plans, after tax, of $12.0 billion and $11.3 billion at December 31, 2016 and 2015 (see "Note 12 - Stockholders' Equity") includes $17.3 billion ($11.2 billion after tax) and $16.1 billion ($10.4 billion after tax) for qualified defined benefit pension plans, $543 million ($351 million after tax) and $794 million ($514 million after tax) for retiree medical and life insurance plans and $677 million ($448 million after tax) and $620 million ($408 million after tax) for other plans.