Pension and Other Employee Benefits (Schedule of Components of Net Periodic Benefit Cost) (Details) - Pension Plan, Defined Benefit [Member] - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Oct. 02, 2016 |
Sep. 27, 2015 |
Oct. 02, 2016 |
Sep. 27, 2015 |
|
| Pension and Other Postretirement Benefit Expense [Line Items] | ||||
| Service cost | $ 116,000,000 | $ 142,000,000 | $ 362,000,000 | $ 403,000,000 |
| Interest cost | 274,000,000 | 263,000,000 | 819,000,000 | 786,000,000 |
| Expected return on plan assets | (373,000,000) | (382,000,000) | (1,132,000,000) | (1,151,000,000) |
| Amounts reflected in net funded status | 17,000,000 | 23,000,000 | 49,000,000 | 38,000,000 |
| Amortization of prior service cost included in net periodic pension expense | 1,000,000 | 2,000,000 | 3,000,000 | 5,000,000 |
| Recognized net actuarial loss | 265,000,000 | 281,000,000 | 755,000,000 | 846,000,000 |
| Loss due to settlements | 0 | 0 | 3,000,000 | 0 |
| Amounts reclassified during the period | 266,000,000 | 283,000,000 | 761,000,000 | 851,000,000 |
| Net periodic pension expense (income) | $ 283,000,000 | $ 306,000,000 | $ 810,000,000 | $ 889,000,000 |