XML 123 R102.htm IDEA: XBRL DOCUMENT v3.20.4
Stockholders' Equity and Noncontrolling Interests - Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Balance at beginning of period $ 45,957 $ 42,777 $ 36,200
Other comprehensive loss, net of tax (2,318) (2,128) (936)
Balance at end of period 49,677 45,957 42,777
Foreign currency translation adjustments [Member]      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Balance at beginning of period (2,278) (2,250) (1,606)
Other comprehensive loss and noncontrolling interests before reclassification adjustment, net of tax and impact of adoption of accounting standards (480) (56) (664)
Reclassification adjustment, net of tax 23 28 20
Other comprehensive loss, net of tax (457) (28) (644)
Balance at end of period (2,735) (2,278) (2,250)
Defined benefit plans attributable [Member]      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Balance at beginning of period (8,859) (6,737) (6,398)
Other comprehensive loss and noncontrolling interests before reclassification adjustment, net of impact of adoption of accounting standards (2,661) (2,769) (580)
Tax benefit 444 463 100
Other comprehensive loss before reclassification adjustment, net of tax and impact of adoption of accounting standards (2,217) (2,306) (480)
Reclassification adjustment, net of tax 422 184 141
Other comprehensive loss, net of tax (1,795) (2,122) (339)
Balance at end of period $ (10,654) $ (8,859) $ (6,737)