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Fair Value Measurements - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended
Jun. 29, 2019
Mar. 31, 2019
Mar. 30, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Operating lease right-of-use assets impairment $ 68    
Impairment of long-lived assets 13    
Cumulative effect of adoption as an adjustment (4,600) $ (4,555) $ (4,707)
Restatement Adjustment | ASU 2016-02      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cumulative effect of adoption as an adjustment     $ 152
Segment Total      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Impairment of long-lived assets $ 11