Leases - Maturity of lease liabilities (Details) $ in Millions	Jun. 29, 2019 USD ($)
Operating Leases
2019	$ 34
2020	57
2021	43
2022	37
2023	31
Thereafter	179
Total lease payments	381
Less: interest	(81)
Total lease liabilities	300
Finance Leases
2019	5
2020	9
2021	9
2022	9
2023	9
Thereafter	69
Total lease payments	110
Less: interest	(27)
Total lease liabilities	$ 83